context stringlengths 545 71.9k | questionsrc stringlengths 16 10.2k | question stringlengths 11 563 |
|---|---|---|
key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . that means the alleles , or gene versions , already together on one chromosome will... | four different phenotypic ( appearance-based ) classes of offspring are produced in this cross , each corresponding to a particular gamete from the female parent : the four classes of offspring are not produced in equal numbers , which tells us that the purple and vestigial genes are linked . as we expect for linked ge... | when calculating rf , do you use the parental phenotypes as `` parental '' or the f1 and tester ? |
key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . that means the alleles , or gene versions , already together on one chromosome will... | cab ? ) if we look at recombination frequencies among all three possible pairs of genes ( ac , ab , bc ) , we can figure out which genes lie furthest apart , and which other gene lies in the middle . specifically , the pair of genes with the largest recombination frequency must flank the third gene : by doing this type... | in this case , is ab ab parental phenotypes or is ab ab parental ? |
key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . that means the alleles , or gene versions , already together on one chromosome will... | that is , the alleles of the genes that are already together on a chromosome will tend to be passed as a unit to gametes . in this case , the genes are linked . for example , two linked genes might behave like this : now , we see gamete types that are present in very unequal proportions . | so can you use a dihybrid cross for linked genes as well as unlinked genes ? |
key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . that means the alleles , or gene versions , already together on one chromosome will... | let 's take a closer look at why this is the case . what is genetic linkage ? when genes are on separate chromosomes , or very far apart on the same chromosomes , they assort independently . | in what way does genetic linkage and recombination give rise to genome mapping ? |
key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . that means the alleles , or gene versions , already together on one chromosome will... | that is , $ 50\ % $ is the largest recombination frequency we 'll ever directly measure between genes . so , if we want to figure out the map distance between genes further apart than this , we must do so by adding the recombination frequencies of multiple pairs of genes , `` building up '' a map that extends between t... | how do you know where to map the first gene and then work from there in mapping the other genes ? |
key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . that means the alleles , or gene versions , already together on one chromosome will... | that is , the alleles of the genes that are already together on a chromosome will tend to be passed as a unit to gametes . in this case , the genes are linked . for example , two linked genes might behave like this : now , we see gamete types that are present in very unequal proportions . | also if marker alleles are potentially linked to disease genes ( haplotype ) and segregate throughout a family how do you know which marker to use to look for the disease gene ? |
key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . that means the alleles , or gene versions , already together on one chromosome will... | as illustrated in the diagram below , the homologues of each pair separate in the first stage of meiosis . in this process , which side the `` dad '' and `` mom '' chromosomes of each pair go to is random . when we are following two genes , this results in four types of gametes that are produced with equal frequency . | crossing over between chromosomes which leads to recombination occurs at random chromosomal locations .what does random means here ? |
key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . that means the alleles , or gene versions , already together on one chromosome will... | so , we can say that a pair of genes with a larger recombination frequency are likely farther apart , while a pair with a smaller recombination frequency are likely closer together together . importantly , recombination frequency `` maxes out '' at $ 50\ % $ ( which corresponds to genes being unlinked , or assorting in... | can you explain again why is the maximum recombinant frequency is 50 % ? |
key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . that means the alleles , or gene versions , already together on one chromosome will... | for instance , we humans have roughly $ 19 , $ $ 000 $ genes on $ 23 $ chromosomes ( present in two sets ) $ ^1 $ . similarly , the humble fruit fly—a favorite subject of study for geneticists—has around $ 13 , $ $ 000 $ genes on $ 4 $ chromosomes ( also present in two sets ) $ ^2 $ . the consequence ? | what will happen if mate the recombinants from image 2 , will this new generation have 48 % recombinant type and 2 % parental type from image 2 ? |
key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . that means the alleles , or gene versions , already together on one chromosome will... | in this process , which side the `` dad '' and `` mom '' chromosomes of each pair go to is random . when we are following two genes , this results in four types of gametes that are produced with equal frequency . when genes are on the same chromosome but very far apart , they assort independently due to crossing over (... | when a dihybrid of f1-generation was test crossed it produced four phenotypes in the following percentage coloured and full = 45 % coloured - shrunken = 5 % colourless - full = 4 % colourless- shrunken =46 % from these data what would be distance between the two non allelic genes ? |
key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . that means the alleles , or gene versions , already together on one chromosome will... | for example , the double crossover shown above would n't be detectable if we were just looking at genes a and c , since these genes end up back in their original configuration . because of this , double crossovers are not counted in the directly measured recombination frequency , resulting a slight underestimate of the... | is there any advantage of having double recombination in qtl analysis of natural variation of rice seed size ? |
key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . that means the alleles , or gene versions , already together on one chromosome will... | key points : when genes are found on different chromosomes or far apart on the same chromosome , they assort independently and are said to be unlinked . when genes are close together on the same chromosome , they are said to be linked . | will there be more cm in heterochromatic regions ? |
summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | what language does the prefixes killo , centi , deci , and milli come from ? |
summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | for example , the distance of a snake is how long the snake is . in the metric system of measurement , the most common units of distance are millimeters , centimeters , meters , and kilometers . how big are metric units of distance ? | how many centimeters in a milimeter = ? |
summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | the length of a guitar is about $ 1 $ meter . a kilometer is equal to $ 1000 $ meters . it is a little over half of a mile . | is there anything before 'millimeter ' and after 'kilometer ' ? |
summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | a kilometer is equal to $ 1000 $ meters . it is a little over half of a mile . want to learn more about metric units of distance ? | how many inches in a mile ? |
summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | check out this video . practice set 2 : converting distance units want to try more problems like this ? check out these exercises : convert larger units to smaller units converting between units | how do you divide a fraction , say 6/8 mm into 2 centimeters ? |
summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | a kilometer is equal to $ 1000 $ meters . it is a little over half of a mile . want to learn more about metric units of distance ? | how many kilometers in a mile ? |
summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | can you use decimals when writing these distance measurements ? |
summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | a kilometer is equal to $ 1000 $ meters . it is a little over half of a mile . want to learn more about metric units of distance ? | how to convert kilometers to mile ? |
summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | another question : what 's a nanometer ? |
summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | how do i find the x of square root 90 ? |
summary of metric units of distance kilometer | meter| centimeter | millimeter : - : | : - : | : - : | : - : $ \goldd1 $ | $ 1000 $ | $ 100 { , } 000 $ | $ 1 { , } 000 { , } 000 $ $ \dfrac { 1 } { 1000 } $ | $ \goldd1 $ | $ 100 $ | $ 1000 $ $ \dfrac { 1 } { 100 { , } 000 } $ | $ \dfrac { 1 } { 100 } $ | $ \goldd1 $ | $... | check out this exercise . converting larger units to smaller units $ 1 \text { centimeter } = \greend { 10 } \text { millimeters } $ $ 1 \text { meter } = \greend { 100 } \text { centimeters } $ $ 1 \text { meter } = \greend { 1,000 } \text { millimeters } $ $ 1 \text { kilometer } = \greend { 1,000 } \text { meters } ... | if the question is to convert 1 m to km , can the answer be in fraction form ? |
books love to hide from us . while you were sure you put your current read on the kitchen table , it turns up next to your comfortable chair in the living room . as you handle more books at the same time , it becomes increasingly challenging to keep track of their location . in the middle ages it was even more difficul... | unlike today , medieval books lacked a standard size , so you couldn ’ t really make neat piles—which brings a bit of order to chaos . finding a book was also made difficult by the fact that the spine title had not yet been invented . so how did medieval readers locate books , especially when they owned a lot of them ? | when then in fact was the `` spine title '' invented ? |
books love to hide from us . while you were sure you put your current read on the kitchen table , it turns up next to your comfortable chair in the living room . as you handle more books at the same time , it becomes increasingly challenging to keep track of their location . in the middle ages it was even more difficul... | how would you otherwise get to lucan ’ s pharsalia in the library , or even know it is present there ? the library catalogue is such a database . up to 1200 the contents list of a monastic library was usually merely an inventory : it marked the presence of a book , but not its location . | somebody knows whether the library of the university liden is very good and big or it 's just that the people who wrote the essays work there ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | unlike covalent compounds , there is no such thing as a molecule of an ionic compound . this is because in nature nacl does not exist in individual units , but in crystal lattice structures that are composed of multiple na $ ^+ $ and cl $ ^- $ ions alternating in space . the chemical formula nacl specifies one formula ... | when nacl crystal dissolves in water , what happens to it ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | concept check : which type of compounds are composed of molecules—ionic or covalent ? conclusion all chemical bonding is due to electrostatic attraction . when atoms combine through chemical bonding , they form compounds—unique structures composed of two or more atoms . | what happens to electrostatic attraction between na and cl atoms ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | you will learn more about this in future lessons on the different types of solids . covalent vs. ionic compounds : molecules vs. formula units now that we ’ ve discussed the basics of both covalent and ionic bonding , we need to draw a few necessary distinctions . we know that a group of atoms joined by only covalent b... | how does bonding ( covalent vs ionic ) determine the properties of a substance ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | to illustrate further , consider the two major types of chemical bonds : covalent bonds and ionic bonds . in covalent bonds , two atoms share electrons , while in ionic bonds , electrons are fully transferred between two atoms so that ions are formed . let ’ s consider both types of bonds in detail . | is it possible for a molecule to lose all of it 's electrons ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | the structure of a covalent compound can be depicted through space-filling models as well as ball-and-stick models . in ionic compounds , electrons are completely transferred from one atom to another so that a cation—positively charged ion—and an anion—negatively charged ion—form . the strong electrostatic attraction b... | in the `` ion and formation '' part , can every elements form an ion ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | to better illustrate this , we first need to examine the structure and formation of ions . recall that neutral atoms have an equal number of protons and electrons . the result of this is that the total positive charge of the protons exactly cancels the total negative charge of the electrons , so that the atom itself ha... | is there a limit to the number of electrons atoms can have , or is it specific to each element ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | let ’ s consider both types of bonds in detail . covalent bonds and molecules a covalent bond is formed when two atoms share electrons . in a covalent bond , the stability of the bond comes from the shared electrostatic attraction between the two positively charged atomic nuclei and the shared , negatively charged elec... | what is the difference bw a covalent and a coordinate bond ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | keep in mind that single formula units , unlike single molecules , largely do not exist in nature—we simply rely on formula units for ease of reference and convenience . concept check : which type of compounds are composed of molecules—ionic or covalent ? conclusion all chemical bonding is due to electrostatic attracti... | this sadly does n't have anything to do with compounds and molecules , but what is the difference between an atom and an element ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in covalent compounds , atoms form covalent bonds that consist of electrons shared between two adjacent atomic nuclei . an example of a covalent compound is ammonia . the chemical formula of ammonia is nh $ _3 $ , which tells us that in a single molecule of ammonia , there is one nitrogen atom , and three hydrogen atom... | does the bond really exist and you can observe , or its a only an illustration of a kind of force within compound ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in the rest of this article , we will stick to the broader definition of molecule because it is more common . therefore , we will be using the terms molecule and covalent compound interchangeably . representing molecules : chemical formulas chemical formulas , sometimes also called molecular formulas , are the simplest... | what is the difference between a molecule and a compound ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | as such , we refer to one piece of nacl not as a molecule but as a formula unit . keep in mind that single formula units , unlike single molecules , largely do not exist in nature—we simply rely on formula units for ease of reference and convenience . concept check : which type of compounds are composed of molecules—io... | why do single ionic bonds ( or formula units ) not exist in nature ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | just as the structure of the atom is held together by the electrostatic attraction between the positively charged nucleus and the negatively charged electrons surrounding it , the stability within chemical bonds is also due to electrostatic attractions . to illustrate further , consider the two major types of chemical ... | na has 1 `` spare '' electron , but forms 4 ionic bonds ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in this diagram , we see the opposite process of what we saw with the sodium atom . here , a neutral chlorine atom , cl , is gaining an electron . the result is that the newly formed chloride ion , cl $ ^- $ , has 17 protons and 18 electrons . | or this 1 `` spare '' electron flies between 4 cl atoms ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | the result is that the newly formed chloride ion , cl $ ^- $ , has 17 protons and 18 electrons . because electrons carry a 1- charge , the net charge on the chloride ion from the extra electron is 1- . it has become an anion , or a negatively charged ion . | another wording : is ionic bond means 1 electron to 1 atom transferring ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | for example , a single molecule of nh $ \purplec { 3 } $ , ammonia , contains one nitrogen atom and three hydrogen atoms . by contrast , a single molecule of n $ \blued { 2 } $ h $ _\redd { 4 } $ , hydrazine , contains two nitrogen atoms and four hydrogen atoms . concept check : the chemical formula for acetic acid , a... | or 1 electron can be simultaneously transferred to n atoms ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | just as the structure of the atom is held together by the electrostatic attraction between the positively charged nucleus and the negatively charged electrons surrounding it , the stability within chemical bonds is also due to electrostatic attractions . to illustrate further , consider the two major types of chemical ... | how would you know if two atoms would undergo covalent or ionic bonding by looking at the periodic table ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | it should be noted , however , that the word molecule should only be used in reference to covalent compounds . in an ionic compound , such as sodium chloride , there is no such thing as a single molecule of sodium chloride since , in reality , sodium chloride is actually made up of multiple sodium and chloride ions joi... | would it be possible to split one na+ and one ci- off of the crystal and have a 'molecule ' of sodium chloride ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | once these ions are formed , there is a strong electrostatic attraction between them , which leads to the formation of an ionic bond . we can see that one of the major distinguishing factors between ionic bonds and covalent bonds is that in ionic bonds , electrons are completely transferred , whereas in covalent bonds ... | is it true that most covalent bonds are nonmentals and if so why is h2o an ionic compound ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | this is because in nature nacl does not exist in individual units , but in crystal lattice structures that are composed of multiple na $ ^+ $ and cl $ ^- $ ions alternating in space . the chemical formula nacl specifies one formula unit of this compound . | how is the order of elements in a chemical formula decided ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | for example , a single molecule of nh $ \purplec { 3 } $ , ammonia , contains one nitrogen atom and three hydrogen atoms . by contrast , a single molecule of n $ \blued { 2 } $ h $ _\redd { 4 } $ , hydrazine , contains two nitrogen atoms and four hydrogen atoms . concept check : the chemical formula for acetic acid , a... | why ca n't the molecule of oxalic acid be represented as h2c2o4 ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | let ’ s consider both types of bonds in detail . covalent bonds and molecules a covalent bond is formed when two atoms share electrons . in a covalent bond , the stability of the bond comes from the shared electrostatic attraction between the two positively charged atomic nuclei and the shared , negatively charged elec... | for the part , 'covalent bonds and molecules ' , is there a maximum number of electrons shared by two or more elements in a covalent bond ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in reality , however , most chemical bonds lie somewhere in between these two cases . drawing ionic bonds we will now consider the different ways we can draw or depict ionic bonds . we will continue looking at the most commonly known ionic compound—sodium chloride , which is best known as table salt . a single ionic bo... | if i find a unique looking stone that appears crystalline , would it be safe to say it is made of an ionic compound ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | it should be noted , however , that the word molecule should only be used in reference to covalent compounds . in an ionic compound , such as sodium chloride , there is no such thing as a single molecule of sodium chloride since , in reality , sodium chloride is actually made up of multiple sodium and chloride ions joi... | why do sodium chloride ions accumulate in salt grains of that size ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | a chemical formula uses symbols from the periodic table to indicate the types of elements present in a particular compound while using subscripts to represent the number of each type of element present . compounds can be covalent or ionic . in covalent compounds , atoms form covalent bonds that consist of electrons sha... | is h20 ( water ) a molecular ( covalent ) or ionic compound ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | to illustrate further , consider the two major types of chemical bonds : covalent bonds and ionic bonds . in covalent bonds , two atoms share electrons , while in ionic bonds , electrons are fully transferred between two atoms so that ions are formed . let ’ s consider both types of bonds in detail . | what causes some atoms to get attracted by electrostatic force and then share electrons , and others to get attracted too but not share electrons ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | let ’ s consider both types of bonds in detail . covalent bonds and molecules a covalent bond is formed when two atoms share electrons . in a covalent bond , the stability of the bond comes from the shared electrostatic attraction between the two positively charged atomic nuclei and the shared , negatively charged elec... | are polar covalent bonds the same as polar bond ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | let ’ s consider both types of bonds in detail . covalent bonds and molecules a covalent bond is formed when two atoms share electrons . in a covalent bond , the stability of the bond comes from the shared electrostatic attraction between the two positively charged atomic nuclei and the shared , negatively charged elec... | how does a covalent bond physically happen ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in a covalent bond , the stability of the bond comes from the shared electrostatic attraction between the two positively charged atomic nuclei and the shared , negatively charged electrons between them . when atoms combine to share covalent bonds , the resulting collection of atoms is called a molecule . we can therefo... | is there a common electron revolving around both of the atoms ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | recall that neutral atoms have an equal number of protons and electrons . the result of this is that the total positive charge of the protons exactly cancels the total negative charge of the electrons , so that the atom itself has an overall charge , or net charge , of zero . however , if an atom gains or loses electro... | does the less electronegative atom stay because the positive charge attracts the negative charge ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in the rest of this article , we will stick to the broader definition of molecule because it is more common . therefore , we will be using the terms molecule and covalent compound interchangeably . representing molecules : chemical formulas chemical formulas , sometimes also called molecular formulas , are the simplest... | what is the difference between a compound and a molecule ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | the structure of a covalent compound can be depicted through space-filling models as well as ball-and-stick models . in ionic compounds , electrons are completely transferred from one atom to another so that a cation—positively charged ion—and an anion—negatively charged ion—form . the strong electrostatic attraction b... | how does one form of energy get converted into another ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | a chemical formula uses symbols from the periodic table to indicate the types of elements present in a particular compound while using subscripts to represent the number of each type of element present . compounds can be covalent or ionic . in covalent compounds , atoms form covalent bonds that consist of electrons sha... | do covalent or ionic bonds occur in specific compounds ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | keep in mind that single formula units , unlike single molecules , largely do not exist in nature—we simply rely on formula units for ease of reference and convenience . concept check : which type of compounds are composed of molecules—ionic or covalent ? conclusion all chemical bonding is due to electrostatic attracti... | is it true that covalent compounds do n't dissolve easily ( in compare with ionic compounds ) for the same reason as why they do n't have strong bonds between molecules in material - they are not very interested in bonding with same molecules as well as any other molecules or ions ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . | what about property of conductance ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in a chemical formula , we use the elemental symbols from the periodic table to indicate which elements are present , and we use subscripts to indicate how many atoms of each element exist within the molecule . for example , a single molecule of nh $ \purplec { 3 } $ , ammonia , contains one nitrogen atom and three hyd... | is n't the three dimensional figure the one with the wedges ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | ions and ion formation now that we have an understanding of covalent bonds , we can begin to discuss the other major type of chemical bond—an ionic bond . unlike covalent bonds , in which electrons are shared between atoms , an ionic bond is formed when two oppositely charged ions attract one another . to better illust... | would it be correct to say that when there is an exchange of electrons in an ionic bond that it stabalizes the atoms so that they are no longer ions ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | this is because in nature nacl does not exist in individual units , but in crystal lattice structures that are composed of multiple na $ ^+ $ and cl $ ^- $ ions alternating in space . the chemical formula nacl specifies one formula unit of this compound . | is crystal lattice of nacl is called a compound or single nacl is called nacl compound ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | for example , cl $ ^- $ is chloride , br $ ^- $ is bromide , o $ ^ { 2- } $ is oxide , n $ ^ { 3- } $ is nitride , etc . ionic bonds in the last section , we looked separately at how sodium can lose an electron to form the cation na $ ^+ $ and at how chlorine can gain an electron to form the anion cl $ ^- $ . in realit... | suppose we have pure and unreacted sodium metal floating out there in space ... ... so will it be willing to lose its one electron to complete its octet and become stable ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | the result is that the newly formed chloride ion , cl $ ^- $ , has 17 protons and 18 electrons . because electrons carry a 1- charge , the net charge on the chloride ion from the extra electron is 1- . it has become an anion , or a negatively charged ion . | also can any element exist as a free and individual ion ( not in a compound ) independently ... ... ..like imagine a chlorine ion has a -1 charge and not in compound ... ... .will that be stable to exist ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | compounds can be covalent or ionic . in covalent compounds , atoms form covalent bonds that consist of electrons shared between two adjacent atomic nuclei . an example of a covalent compound is ammonia . | do the electrons that are shared in a covalent bond stay between the two nuclei of the atoms sharing them ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | the result of this is that the total positive charge of the protons exactly cancels the total negative charge of the electrons , so that the atom itself has an overall charge , or net charge , of zero . however , if an atom gains or loses electrons , the balance between protons and electrons is upset , and the atom bec... | is there a limit to how many proton , neutrons and electrons an atom can hold ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | it should be noted , however , that the word molecule should only be used in reference to covalent compounds . in an ionic compound , such as sodium chloride , there is no such thing as a single molecule of sodium chloride since , in reality , sodium chloride is actually made up of multiple sodium and chloride ions joi... | if sodium chloride is dissolved in water , what happens there ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | let ’ s first look at what happens when a neutral atom loses an electron : in the diagram above , we see a neutral atom of sodium , na , losing an electron . the result is that the sodium ion , na $ ^+ $ , has 11 protons , but only 10 electrons . thus , the sodium ion has a net charge of 1+ , and it has become a cation... | does this chemical reaction separates naci into na and ci and redistribute previously catonized na and anionized ci therefore to return its original amount of electrons ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | this is because in nature nacl does not exist in individual units , but in crystal lattice structures that are composed of multiple na $ ^+ $ and cl $ ^- $ ions alternating in space . the chemical formula nacl specifies one formula unit of this compound . | how would one draw the structural formula of carbon monoxide ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | the result is that the newly formed chloride ion , cl $ ^- $ , has 17 protons and 18 electrons . because electrons carry a 1- charge , the net charge on the chloride ion from the extra electron is 1- . it has become an anion , or a negatively charged ion . | what happens with the extra electrons in carbon monoxide ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in reality , however , most chemical bonds lie somewhere in between these two cases . drawing ionic bonds we will now consider the different ways we can draw or depict ionic bonds . we will continue looking at the most commonly known ionic compound—sodium chloride , which is best known as table salt . | in the drawing ionic bonds section , why is it that only cl has its dots all around ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in the last section , we looked at the chemical formula for ammonia , which is nh $ _3 $ . now , let ’ s consider its structural formula : from both of these structural formulas , we can see that the central nitrogen atom shares a single covalent bond with each hydrogen atom . keep in mind , however , that atoms and mo... | why does n't hydrogen atom take away one electron and run away from the other hydrogen atom with which it is making a covalent bond ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | to illustrate further , consider the two major types of chemical bonds : covalent bonds and ionic bonds . in covalent bonds , two atoms share electrons , while in ionic bonds , electrons are fully transferred between two atoms so that ions are formed . let ’ s consider both types of bonds in detail . | is it the geometry or placement which is causing the hydrogen to share the 2 electrons ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in a chemical formula , we use the elemental symbols from the periodic table to indicate which elements are present , and we use subscripts to indicate how many atoms of each element exist within the molecule . for example , a single molecule of nh $ \purplec { 3 } $ , ammonia , contains one nitrogen atom and three hyd... | -2/2=-1 ... ... ... .but why not each hydrogen take one electron and deform the bonding ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | for example , cl $ ^- $ is chloride , br $ ^- $ is bromide , o $ ^ { 2- } $ is oxide , n $ ^ { 3- } $ is nitride , etc . ionic bonds in the last section , we looked separately at how sodium can lose an electron to form the cation na $ ^+ $ and at how chlorine can gain an electron to form the anion cl $ ^- $ . in realit... | why does sodium even give its electron to chlorine and why does chlorine even accept the electrons of sodium ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | recall that neutral atoms have an equal number of protons and electrons . the result of this is that the total positive charge of the protons exactly cancels the total negative charge of the electrons , so that the atom itself has an overall charge , or net charge , of zero . however , if an atom gains or loses electro... | can these same terms be applied to ions with a net charge of more than positive one or negative one ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in this diagram , we see the opposite process of what we saw with the sodium atom . here , a neutral chlorine atom , cl , is gaining an electron . the result is that the newly formed chloride ion , cl $ ^- $ , has 17 protons and 18 electrons . | to shorten it , if an atom of chlorine has three more electrons than protons ( cl^3- ) , can it still be called an anion ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | once these ions are formed , there is a strong electrostatic attraction between them , which leads to the formation of an ionic bond . we can see that one of the major distinguishing factors between ionic bonds and covalent bonds is that in ionic bonds , electrons are completely transferred , whereas in covalent bonds ... | can radioactive isotopes form covalent or ionic bonds ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in the rest of this article , we will stick to the broader definition of molecule because it is more common . therefore , we will be using the terms molecule and covalent compound interchangeably . representing molecules : chemical formulas chemical formulas , sometimes also called molecular formulas , are the simplest... | also , is there any way to predict the properties of a molecule that is you do not actually have ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | representing molecules : structural formulas chemical formulas only tell us how many atoms of each element are present in a molecule , but structural formulas also give information about how the atoms are connected in space . in structural formulas , we actually draw the covalent bonds shared between atoms . in the las... | e.g would there be any way to predict the properties of water without actually having water or any scientific equipment ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | let ’ s consider both types of bonds in detail . covalent bonds and molecules a covalent bond is formed when two atoms share electrons . in a covalent bond , the stability of the bond comes from the shared electrostatic attraction between the two positively charged atomic nuclei and the shared , negatively charged elec... | if it is the simplest unit of the covalent bond and the covalent bond is a group of atoms , would n't that make the simplest unit an atom ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | however , if an atom gains or loses electrons , the balance between protons and electrons is upset , and the atom becomes an ion—a species with a net charge . let ’ s first look at what happens when a neutral atom loses an electron : in the diagram above , we see a neutral atom of sodium , na , losing an electron . the... | na loses an electron and cl gains an electron because it is more electronegative , what if both atoms had an outer shell of four electrons ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | to illustrate further , consider the two major types of chemical bonds : covalent bonds and ionic bonds . in covalent bonds , two atoms share electrons , while in ionic bonds , electrons are fully transferred between two atoms so that ions are formed . let ’ s consider both types of bonds in detail . | which atom would become negative if these two atoms became an ionic compound ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | the result of this is that the total positive charge of the protons exactly cancels the total negative charge of the electrons , so that the atom itself has an overall charge , or net charge , of zero . however , if an atom gains or loses electrons , the balance between protons and electrons is upset , and the atom bec... | will the atom with more electrons in its inner shells end up becoming negative ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | to illustrate further , consider the two major types of chemical bonds : covalent bonds and ionic bonds . in covalent bonds , two atoms share electrons , while in ionic bonds , electrons are fully transferred between two atoms so that ions are formed . let ’ s consider both types of bonds in detail . | is it even possible for two atoms with four electrons in their outer shell to form an ionic compound ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | for example , cl $ ^- $ is chloride , br $ ^- $ is bromide , o $ ^ { 2- } $ is oxide , n $ ^ { 3- } $ is nitride , etc . ionic bonds in the last section , we looked separately at how sodium can lose an electron to form the cation na $ ^+ $ and at how chlorine can gain an electron to form the anion cl $ ^- $ . in realit... | my question is , do metals form with each other ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | just as the structure of the atom is held together by the electrostatic attraction between the positively charged nucleus and the negatively charged electrons surrounding it , the stability within chemical bonds is also due to electrostatic attractions . to illustrate further , consider the two major types of chemical ... | give three reasons for chemical bonds formation ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | a chemical formula uses symbols from the periodic table to indicate the types of elements present in a particular compound while using subscripts to represent the number of each type of element present . compounds can be covalent or ionic . in covalent compounds , atoms form covalent bonds that consist of electrons sha... | how do you know if a compound is ionic or covalent ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | ions and ion formation now that we have an understanding of covalent bonds , we can begin to discuss the other major type of chemical bond—an ionic bond . unlike covalent bonds , in which electrons are shared between atoms , an ionic bond is formed when two oppositely charged ions attract one another . to better illust... | are subatomic particles distinct from one another , from one element to another or are they ; ( electrons , protons & neutrons ... ) the 'same ' from one element to another ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | you will learn more about this in future lessons on the different types of solids . covalent vs. ionic compounds : molecules vs. formula units now that we ’ ve discussed the basics of both covalent and ionic bonding , we need to draw a few necessary distinctions . we know that a group of atoms joined by only covalent b... | how do we know that a given compound is formed my covalent bonding or ionic ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | to illustrate further , consider the two major types of chemical bonds : covalent bonds and ionic bonds . in covalent bonds , two atoms share electrons , while in ionic bonds , electrons are fully transferred between two atoms so that ions are formed . let ’ s consider both types of bonds in detail . | why is 8 the amount of electrons needed for a `` complete '' outer shell when sometimes the shell can hold more than 8 electrons ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | the ions are then held in place by their very strong ionic bonds . the above structure is known as a crystal lattice , and sodium chloride—like most ionic compounds—is a crystalline solid . you will learn more about this in future lessons on the different types of solids . | in https : //ka-perseus-images.s3.amazonaws.com/e69acd6966cf0003fc948afc91323bf4c9012eef.png , does a molecule structure look like the picture at the left side , or does it look like the right side ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | to better illustrate this , we first need to examine the structure and formation of ions . recall that neutral atoms have an equal number of protons and electrons . the result of this is that the total positive charge of the protons exactly cancels the total negative charge of the electrons , so that the atom itself ha... | can protons be gained or lost the same way electrons can ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | in nature , sodium chloride does not exist as a single sodium cation bonded with a single chloride anion . as we mentioned earlier , sodium chloride is table salt—and if we were able to use a super-powered microscope that could examine table salt at the atomic level , we would see something like the following structure... | in the middle of the text , there is a picture depicting the crystal structure of table salt - i understand that the stems connecting cl and na would be the ionic bonds that keep them together , but i also see stems connecting negatively charged cl ions , does that mean there is a bond between them as well ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | the result is that the newly formed chloride ion , cl $ ^- $ , has 17 protons and 18 electrons . because electrons carry a 1- charge , the net charge on the chloride ion from the extra electron is 1- . it has become an anion , or a negatively charged ion . | so would salt be like na^1+ and cl^1- ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | the advantage of this type of model is that we get to see the covalent bonds , which also allows us to more easily see the geometry of the molecule . ions and ion formation now that we have an understanding of covalent bonds , we can begin to discuss the other major type of chemical bond—an ionic bond . unlike covalent... | so , just as a concept check , and typically speaking , two cations ( + ) create a covalent bond , and one cation ( + ) and one anion ( - ) create an ionic bond ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | however , if an atom gains or loses electrons , the balance between protons and electrons is upset , and the atom becomes an ion—a species with a net charge . let ’ s first look at what happens when a neutral atom loses an electron : in the diagram above , we see a neutral atom of sodium , na , losing an electron . the... | why 8 electron in the outer layer is required for an atom to be stable ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | compounds can be covalent or ionic . in covalent compounds , atoms form covalent bonds that consist of electrons shared between two adjacent atomic nuclei . an example of a covalent compound is ammonia . | in the second paragraph of the conlusion it says : '' in covalent compounds , atoms form covalent bonds that consist of electrons shared between two adjacent atomic nuclei '' is n't the nucleus just the protons and neutrons ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | compounds can be covalent or ionic . in covalent compounds , atoms form covalent bonds that consist of electrons shared between two adjacent atomic nuclei . an example of a covalent compound is ammonia . | should n't it be : '' in covalent compounds , atoms form covalent bonds that consist of electrons shared between two adjacent atoms '' ? |
atoms are the smallest units of matter that still retain the fundamental chemical properties of an element . much of the study of chemistry , however , involves looking at what happens when atoms combine with other atoms to form compounds . a compound is a distinct group of atoms held together by chemical bonds . just ... | the result is that the newly formed chloride ion , cl $ ^- $ , has 17 protons and 18 electrons . because electrons carry a 1- charge , the net charge on the chloride ion from the extra electron is 1- . it has become an anion , or a negatively charged ion . | with n and h , why is the ratio and not ? |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.