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cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | i was wondering where they had their burial ground ; if they had it in the caves , or on the ground , or if they just cremated ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the cliff dwellings are , however , certainly among the best preserved buildings from this time . cliff palace the largest of all the cliff dwellings , cliff palace , has about 150 rooms and more than 20 circular rooms . due to its location , it was well protected from the elements . | how come people carved houses out of a cliff , instead of just building them with common materials ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | notice , for example , how the geometric designs on the mugs above appear similar to those in mural 30 at cliff palace . why build here ? from 500–1300 ce , ancestral puebloans who lived at mesa verde were sedentary farmers who cultivated beans , squash , and corn . | why they needed to build cave dwellings to live ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the inhabited region encompassed a far larger geographic area than is defined now by the national park and included other residential sites like hovenweep national monument and yellow jacket pueblo . not all ancestral puebloans lived in cliff dwellings . yellow jacket pueblo was much larger than any site at mesa verde ... | what caused the 30 years of drout that forced the ancient puebloans to move ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | ancestral puebloans occupied the mesa verde region from about 450 ce to 1300 ce . the inhabited region encompassed a far larger geographic area than is defined now by the national park and included other residential sites like hovenweep national monument and yellow jacket pueblo . not all ancestral puebloans lived in c... | is there a way to render a drawing or some sort of visual aid of what the land was like while they inhabited the area ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the most famous residential sites date to the twelfth and thirteenth centuries . the ancestral puebloans accessed these dwellings with retractable ladders ; if you are sure footed and not afraid of heights , you can still visit some of these sites in the same way today . to access mesa verde national park , you drive u... | what if someone is afraid of heights ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | corn originally came from what is today mexico at some point during the first millennium of the common era . originally most farmers lived near their crops , but this shifted in the late 1100s when people began to live near sources of water and often had to walk longer distances to their crops . so why move up to the c... | q : has there ever been a dive into that huge watering caldera near by ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | to build these structures , people used stone and mud mortar , along with wooden beams adapted to the natural clefts in the cliff face . this building technique was a shift from structures built prior to 1000 ce in the mesa verde area , which had been made primarily of adobe , a type of brick made of clay , sand and st... | perhaps new finds will be made ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the cliff dwellings are , however , certainly among the best preserved buildings from this time . cliff palace the largest of all the cliff dwellings , cliff palace , has about 150 rooms and more than 20 circular rooms . due to its location , it was well protected from the elements . | so the cave gives protection form the wether , predators and enemies so maybe the top of the cliff alcoves is sporting the top of the cave in return ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | notice , for example , how the geometric designs on the mugs above appear similar to those in mural 30 at cliff palace . why build here ? from 500–1300 ce , ancestral puebloans who lived at mesa verde were sedentary farmers who cultivated beans , squash , and corn . | how did the pueblo people build their houses in cliffs ( such as described in the first few paragraphs ) and how did it benefit them ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | yellow jacket pueblo was much larger than any site at mesa verde . it had 600–1200 rooms , and 700 people likely lived there ( see link below ) . in contrast , only about 125 people lived in cliff palace , the largest of the mesa verde sites . the cliff dwellings are , however , certainly among the best preserved build... | could modern day people inhabit this old civilization 's home today ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the cliff dwellings at mesa verde were abandoned around 1300 ce after all the time and effort it took to build these beautiful dwellings , why did people leave the area ? cliff palace was built in the twelfth century . why was it abandoned less than a hundred years later ? | do scientists have any real proof that they were here in 12th century ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the inhabited region encompassed a far larger geographic area than is defined now by the national park and included other residential sites like hovenweep national monument and yellow jacket pueblo . not all ancestral puebloans lived in cliff dwellings . yellow jacket pueblo was much larger than any site at mesa verde ... | has there been a comparison done between petra and the puebloan cliff dwellings ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | essay by dr. lauren kilroy-ewbank additional resources mesa verde national park site yellow jacket pueblo reconstruction berlo , janet catherine , and ruth b. phillips . native north american art , 2 ed . oxford history of art series . | were the inhabitants of mesa verde a native american tribe or a nomadic tribe that migrated over ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | originally most farmers lived near their crops , but this shifted in the late 1100s when people began to live near sources of water and often had to walk longer distances to their crops . so why move up to the cliff alcoves at all , away from water and crops ? did the cliffs provide protection from invaders ? | ca n't water carve away the stone that the cliff was made of ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the cliff dwellings are , however , certainly among the best preserved buildings from this time . cliff palace the largest of all the cliff dwellings , cliff palace , has about 150 rooms and more than 20 circular rooms . due to its location , it was well protected from the elements . | if not , what rock was the cliff made of anyway ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | notice , for example , how the geometric designs on the mugs above appear similar to those in mural 30 at cliff palace . why build here ? from 500–1300 ce , ancestral puebloans who lived at mesa verde were sedentary farmers who cultivated beans , squash , and corn . | how is it that people like our ancestors can build such beautiful things and then just abandon them like a ghost town ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the cliff dwellings are , however , certainly among the best preserved buildings from this time . cliff palace the largest of all the cliff dwellings , cliff palace , has about 150 rooms and more than 20 circular rooms . due to its location , it was well protected from the elements . | why do people live under the cliff ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | notice , for example , how the geometric designs on the mugs above appear similar to those in mural 30 at cliff palace . why build here ? from 500–1300 ce , ancestral puebloans who lived at mesa verde were sedentary farmers who cultivated beans , squash , and corn . | why did the people build 150 rooms ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | why were the cliffs abandoned ? the cliff dwellings at mesa verde were abandoned around 1300 ce after all the time and effort it took to build these beautiful dwellings , why did people leave the area ? cliff palace was built in the twelfth century . | why did the people leave ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the cliff dwellings are , however , certainly among the best preserved buildings from this time . cliff palace the largest of all the cliff dwellings , cliff palace , has about 150 rooms and more than 20 circular rooms . due to its location , it was well protected from the elements . | how will you feel about living under a cliff ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | noble , david grant . the mesa verde world : explorations in ancestral pueblo archaeology . santa fe , nm : school of american research press , 2006 . | how large was the population that lived in mesa verde ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the dwellings depicted here are located in what is today southwestern colorado in the national park known as mesa verde . “ verde ” is spanish for green . “ mesa ” means table in spanish but here refers to the flat-topped mountains common in the southwestern united states . | why is this cliff dwelling called `` green mesa '' in spanish ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | how do scientists estimate the age of the homes ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the inhabited region encompassed a far larger geographic area than is defined now by the national park and included other residential sites like hovenweep national monument and yellow jacket pueblo . not all ancestral puebloans lived in cliff dwellings . yellow jacket pueblo was much larger than any site at mesa verde ... | what made the puebloans leave ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the inhabited region encompassed a far larger geographic area than is defined now by the national park and included other residential sites like hovenweep national monument and yellow jacket pueblo . not all ancestral puebloans lived in cliff dwellings . yellow jacket pueblo was much larger than any site at mesa verde ... | one thing that i have always wondered is how do these cliff dwellings deal with the heat for certain parts of the day ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the dwellings depicted here are located in what is today southwestern colorado in the national park known as mesa verde . “ verde ” is spanish for green . “ mesa ” means table in spanish but here refers to the flat-topped mountains common in the southwestern united states . | how to be sure of any spanish influence ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | were they defensive , or were there other issues at play ? did the rock ledges have a ceremonial or spiritual significance ? they certainly provide shade and protection from snow . | what tools did these people use to carve out all that rock ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | what is the reason for the name change from anasazi to ancestral puebloan ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the inhabited region encompassed a far larger geographic area than is defined now by the national park and included other residential sites like hovenweep national monument and yellow jacket pueblo . not all ancestral puebloans lived in cliff dwellings . yellow jacket pueblo was much larger than any site at mesa verde ... | do you know where the ancestral puebloans moved to ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | originally most farmers lived near their crops , but this shifted in the late 1100s when people began to live near sources of water and often had to walk longer distances to their crops . so why move up to the cliff alcoves at all , away from water and crops ? did the cliffs provide protection from invaders ? | why did the settlers move away from there ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the inhabited region encompassed a far larger geographic area than is defined now by the national park and included other residential sites like hovenweep national monument and yellow jacket pueblo . not all ancestral puebloans lived in cliff dwellings . yellow jacket pueblo was much larger than any site at mesa verde ... | how many lived in there ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | other rooms located off the hearth were most likely storage rooms , with just enough of an opening to squeeze your arm through a hole to grab anything you might need . cliff palace also features some unusual structures , including a circular tower . archaeologists are still uncertain as to the exact use of the tower . | do structures like these exist elsewhere on the globe ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | the inhabited region encompassed a far larger geographic area than is defined now by the national park and included other residential sites like hovenweep national monument and yellow jacket pueblo . not all ancestral puebloans lived in cliff dwellings . yellow jacket pueblo was much larger than any site at mesa verde ... | i seem to recall hearing that there are cave dwellings in aruba ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | these questions have not been answered conclusively , though it is likely that the migration from this area was due to either drought , lack of resources , violence , or some combination of these factors . we know , for instance , that droughts occurred from 1276 to 1299 ce . these dry periods likely caused a shortage ... | how bad were the droughts ? |
cliff palace , ancestral puebloan , 450–1300 ce , sandstone , mesa verde national park , colorado ( photo : steven zucker , cc : by-nc-sa 2.0 ) wanted : stunning view imagine living in a home built into the side of a cliff . the ancestral puebloan peoples , formerly known as the anasazi , did just that in some of the... | in contrast , only about 125 people lived in cliff palace , the largest of the mesa verde sites . the cliff dwellings are , however , certainly among the best preserved buildings from this time . cliff palace the largest of all the cliff dwellings , cliff palace , has about 150 rooms and more than 20 circular rooms . | maybe no water dried the buildings and over time caused them to weaken or crumble , wat do u think ? |
what you need to know for this lesson the following factoring methods will be used in this lesson : factoring out the gcf the sum-product pattern the grouping method the perfect square trinomial pattern the difference of squares pattern what you will learn in this lesson in this article , you will practice putting thes... | question 3 : is there a perfect square trinomial ( i.e . $ x^2-10x+25 $ or $ 4x^2+12x+9 $ ) ? if a perfect square trinomial is present , factor using the pattern $ a^2\pm2ab+b^2= ( a\pm b ) ^2 $ . if not , move on to question 4 . | so is it possible to say that if a = b then a ^ 2 + b ^ 2 = ( a+b ) ^2/2 ? |
what you need to know for this lesson the following factoring methods will be used in this lesson : factoring out the gcf the sum-product pattern the grouping method the perfect square trinomial pattern the difference of squares pattern what you will learn in this lesson in this article , you will practice putting thes... | if yes , move on to b ) . b . ) are there factors of $ c $ that sum to $ b $ ? | suppose last one is true and a < b then is it possible to somehow rearrange values of ( a , b ) to fit the formula above ? |
what you need to know for this lesson the following factoring methods will be used in this lesson : factoring out the gcf the sum-product pattern the grouping method the perfect square trinomial pattern the difference of squares pattern what you will learn in this lesson in this article , you will practice putting thes... | next question . question 3 : is there a perfect square trinomial ? yes . | is there a perfect square trinomial ? |
what you need to know for this lesson the following factoring methods will be used in this lesson : factoring out the gcf the sum-product pattern the grouping method the perfect square trinomial pattern the difference of squares pattern what you will learn in this lesson in this article , you will practice putting thes... | yes . $ x^2-16= ( \blued { x } ) ^2- ( \greend 4 ) ^2 $ . we can use the difference of squares pattern to continue factoring the polynomial as shown below . | on question # 5 , is n't 8 ( x+1/2 ) ( x-2 ) a more completely factored version of 4 ( 2x+1 ) ( x-2 ) ? |
what you need to know for this lesson the following factoring methods will be used in this lesson : factoring out the gcf the sum-product pattern the grouping method the perfect square trinomial pattern the difference of squares pattern what you will learn in this lesson in this article , you will practice putting thes... | specifically , there are factors of $ -21 $ that add up to $ 4 $ . since $ 7\cdot ( -3 ) =-21 $ and $ 7+ ( -3 ) =4 $ , we can continue to factor as follows : $ \begin { align } \phantom { 3 ( x^2+4x-21 ) } & amp ; =3 ( x^2+4x-21 ) \ \ & amp ; =3 ( x+7 ) ( x-3 ) \ \end { align } $ in conclusion , $ 3x^2+12x-63=3 ( x+7 )... | excercise7 ) i am a little confused , ca n't 3 ( x^2+9 ) be simplyfied to 3 ( x+3 ) ^2 ? |
what you need to know for this lesson the following factoring methods will be used in this lesson : factoring out the gcf the sum-product pattern the grouping method the perfect square trinomial pattern the difference of squares pattern what you will learn in this lesson in this article , you will practice putting thes... | specifically , there are factors of $ -21 $ that add up to $ 4 $ . since $ 7\cdot ( -3 ) =-21 $ and $ 7+ ( -3 ) =4 $ , we can continue to factor as follows : $ \begin { align } \phantom { 3 ( x^2+4x-21 ) } & amp ; =3 ( x^2+4x-21 ) \ \ & amp ; =3 ( x+7 ) ( x-3 ) \ \end { align } $ in conclusion , $ 3x^2+12x-63=3 ( x+7 )... | i do n't understand how the answer to the last question ( # 7 ) is 3 ( x^2 + 9 ) is n't x^2 + 9 a sum of squares so should n't it be 3 ( x+3 ) ^2 ? |
after charlemagne ’ s legacy had begun to die out , the warlike tribes in what is now germany ( then saxony ) banded together to elect a king from among their nobility . in 919 c.e. , they chose henry the liudolfing , the son of a high-ranking duke , a brilliant military strategist and a well-respected leader . henry ,... | many manuscripts also included a page depicting the artist or scribe of the work , acknowledging that the production of a book required not only money but also artistic labor . in the hillinus codex , a monk presents the codex that he has written or painted ( or both ! ) to st. peter . | could someone remind me what a codex is ? |
what is autism spectrum disorder ? how old were you when you first started to play with toys , smile at your family , or say a new word ? some of us did these things very early in life while others took a little longer - every baby grows and changes at their own unique pace . however , they usually follow a similar dev... | applied behavior analysis ( aba ) is the most effective treatment for autism spectrum disorder , and uses behavioral principles to understand and increase positive behaviors and decrease negative behavior . aba therapists help children learn to communicate , be social , take care of themselves , play appropriately , an... | what does the author of this article think of the controversy surrounding aba therapy , and the viewpoints of some autistic adults who had aba as children ? |
what is autism spectrum disorder ? how old were you when you first started to play with toys , smile at your family , or say a new word ? some of us did these things very early in life while others took a little longer - every baby grows and changes at their own unique pace . however , they usually follow a similar dev... | what is autism spectrum disorder ? how old were you when you first started to play with toys , smile at your family , or say a new word ? | if a mother has an anxiety disorder , then , does the fact that she feels more stress/anxiety than other women during pregnancy increase her children 's chances of having autism ? |
what is autism spectrum disorder ? how old were you when you first started to play with toys , smile at your family , or say a new word ? some of us did these things very early in life while others took a little longer - every baby grows and changes at their own unique pace . however , they usually follow a similar dev... | parental age : the risk of autism increases as parents get older . women over the age of 35 are 1.2 times more likely to have a child with autism spectrum disorder and men over the age of 50 are 2.2 times more likely to have a child with the disorder . this may be because the genes found in sperm and egg cells can muta... | what are the likely hoods for a chemical research scientist to give birth to an autistic child compared to a mother that is n't a research scientist ? |
what is autism spectrum disorder ? how old were you when you first started to play with toys , smile at your family , or say a new word ? some of us did these things very early in life while others took a little longer - every baby grows and changes at their own unique pace . however , they usually follow a similar dev... | what is autism spectrum disorder ? how old were you when you first started to play with toys , smile at your family , or say a new word ? | what do autism vaccinations do ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | interesting note : if you were a kangaroo , what i just said would not be true ! in kangaroos and other marsupials , it is always the paternal x chromosome that undergoes x-inactivation $ ^2 $ . x-inactivation example : calico cat a classic example of x-inactivation is seen in cats . | and about that , how will the inactivated x chromosome be when it undergoes meiosis to produce gametes ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | although it 's rarely as easy to see as in the case of the tortoiseshell cat , human females are also `` mosaic '' for any genes that are present in different alleles on their two x chromosomes . sex chromosome aneuploidies when an organism has an extra or missing copy of a chromosome , it is said to be aneuploid . ane... | ( under sex chromosome aneuploidies topic ) what about just y chromosome in male ( relative to the non dis-junction of sex chromosome ) ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | interesting note : if you were a kangaroo , what i just said would not be true ! in kangaroos and other marsupials , it is always the paternal x chromosome that undergoes x-inactivation $ ^2 $ . x-inactivation example : calico cat a classic example of x-inactivation is seen in cats . | will it result in fetal death as there 's no x chromosome at all ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | people with this disorder develop as females , but often have short stature and may exhibit symptoms like infertility and learning difficulties . turner syndrome is though to occur in about $ 1 $ out of every $ 2 , $ $ 500 $ female births $ ^6 $ . it has relatively mild effects because humans normally have only one x a... | given the explanations above , how does swyer syndrome occur ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | in some cases , triple x syndrome may be associated with learning difficulties , late development of motor skills in infants , and problems with muscle tone $ ^ { 4 } $ . klinefelter syndrome , in which males have an extra x chromosome , leading to a genotype of xxy . ( in rarer cases , klinefelter syndrome can involve... | but why is it people with klinefelter syndrome still have abnormalities ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | why does n't it cause problems for men to have just one copy of the x chromosome , while women have two ? x-inactivation as it turns out , the level of gene activity produced by a single x chromosome is the normal `` dosage '' for a human . men have this dosage because , well , they only have one x chromosome ! women h... | if the inactivation of one of the x chromosomes is random , and half of the genes in the mothers body will either express or not express the allele ; if a mother is heterozygous for hemophilia and the x chromosome that does not carry the gene is shut off , does that mean that some of the mothers cells will be hemophill... |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | in some cases , triple x syndrome may be associated with learning difficulties , late development of motor skills in infants , and problems with muscle tone $ ^ { 4 } $ . klinefelter syndrome , in which males have an extra x chromosome , leading to a genotype of xxy . ( in rarer cases , klinefelter syndrome can involve... | if the extra copy of x chromosome is inactivated by barr bodies , why does xxx or xxy show an abnormal phenotype ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | in kangaroos and other marsupials , it is always the paternal x chromosome that undergoes x-inactivation $ ^2 $ . x-inactivation example : calico cat a classic example of x-inactivation is seen in cats . if a female cat is heterozygous for black and tan alleles of a coat color gene found on the x , she will inactivate ... | is the inactivation not perfect ( i.e leaky ) ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n't it cause problems for men to have just one copy of the x chromosome , while women have two ? x-inactivation as it turns out , the level of gene activity produced by a single x chromosome is the normal `` dosage '' ... | would n't x-inactivation make it so that women only require one copy of a recessive allele to express a diseased phenotype in some cases ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | interesting note : if you were a kangaroo , what i just said would not be true ! in kangaroos and other marsupials , it is always the paternal x chromosome that undergoes x-inactivation $ ^2 $ . x-inactivation example : calico cat a classic example of x-inactivation is seen in cats . if a female cat is heterozygous for... | does x-inactivation in heterozygotes cause random coat patterns in other animals , such as rabbits and guinea pigs , as well ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | like females , xxy males with klinefelter syndrome will convert one x to a barr body in each cell . triple x females ( as well as klinefelter males with more than two x chromosomes ) neutralize their extra xs by forming additional barr bodies . for example , there would be two barr bodies in a cell from an xxx female o... | are barr bodies transferred to daughter cells ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | aneuploidies involving autosomes ( non-sex chromosomes ) , especially large ones , are usually so harmful to development that an aneuploid embryo ca n't survive to birth . aneuploidies of x chromosomes , however , tend to be much less harmful , despite the fact that the x is a large chromosome . this is mostly thanks t... | is it possible that a female heterozygous for hemophilia has all her normal x chromosomes inactivated and thus express the trait ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | klinefelter syndrome is thought to affect $ 1 $ out of every $ 500 $ to $ 1 , $ $ 000 $ male newborns $ ^ { 5 } $ . like females , xxy males with klinefelter syndrome will convert one x to a barr body in each cell . triple x females ( as well as klinefelter males with more than two x chromosomes ) neutralize their extr... | as in turner syndrome the female have short stature , will the females with more than two x chromosomes have any effect on their stature ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | interesting note : if you were a kangaroo , what i just said would not be true ! in kangaroos and other marsupials , it is always the paternal x chromosome that undergoes x-inactivation $ ^2 $ . x-inactivation example : calico cat a classic example of x-inactivation is seen in cats . | can x chromosome determine the stature of an individual ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | the process of x-inactivation was discovered by the british geneticist mary f. lyon and is sometimes called lyonization in her honor $ ^ { 1 } $ . a woman has two x chromosomes , one from each parent . which one will she inactivate ? | can a malfunction happen in which both x chromosomes stay active somehow , and would that be lethal ? |
introduction having extra or missing chromosomes is not usually a good thing . in fact , for most chromosomes , having an extra or missing copy is lethal to humans ( causing an embryo to die early in development ) . yet , human females have two x chromosomes ( xx ) , while human males have just one ( xy ) . why does n'... | sex chromosome aneuploidies when an organism has an extra or missing copy of a chromosome , it is said to be aneuploid . aneuploidies involving autosomes ( non-sex chromosomes ) , especially large ones , are usually so harmful to development that an aneuploid embryo ca n't survive to birth . aneuploidies of x chromosom... | will the embryo survive , if so will he be a fertile ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | however , lower energy radiation in the infrared ( ir ) region of the spectrum can also produce changes within atoms and molecules . this type of radiation is not energetic enough to excite electrons , but it will cause the chemical bonds within molecules to vibrate in different ways . just as the energy required to ex... | how can a flame test be used to excite electrons when it is stated that ir cant excite electrons but it can only vibrate its chemical bonds ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | what is the concentration of the solution ? first , we can apply the beer-lambert law . $ a=\epsilon lc $ next , we rearrange the equation to solve for concentration , $ c $ . | in the beer-lambert law section , what is path length ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . this movement of an electron from a lower energy level to a higher energy level , or from a higher energy back down to a lower energy level , is known as a tran... | let 's assume that the electron of some atom requires x j of energy to move to the next energy level , then can it absorb 2 photons carrying x/2 j of energy to do so ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . this movement of an electron from a lower energy level to a higher energy level , or from a higher energy back down to a lower energy level , is known as a tran... | if not , then why and if this can occur , then why do n't electrons just absorb energy from more photons of lesser frequency to move to the next energy level ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | for example , a chemist might learn from an ir spectrum that a molecule contains carbon-carbon single bonds , carbon-carbon double bonds , carbon-nitrogen single bonds , carbon-oxygen double bonds , to name but a few . because each of these bonds is different , each will vibrate in a different way , and absorb ir radia... | when we heat the metals , does it takes different amount of heat to excite atoms of different element ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | we will begin our discussion by considering uv-vis spectroscopy – that is , what occurs within atoms and molecules when photons in the uv and visible ranges of the spectrum ( wavelengths of about $ 10-700\text { nm } $ ) are absorbed or emitted . uv-vis spectroscopy we have mentioned how atoms and molecules can absorb ... | when we stand under the sun , is the heat we feel the result of uv light causing molecular vibrations in our cells , since more kinetic energy through vibrating molecules translates to an increase in temperature ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | if you ’ ve ever put food coloring in water , then you already know that the more food coloring you put in , the darker and more colored your solution becomes . when a solution becomes darker , it means that it is absorbing more visible light . one of the most commonly used analytical techniques in chemistry is to plac... | and can the same be said about all heat sources that are also sources of visible/near-visible light , such as ovens and lightbulbs ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | however , once the electron is in the excited , higher energy level , it is in a more unstable position than it was when it was in its relaxed , ground state . as such , the electron will quickly fall back down to the lower energy level—and it doing so , it emits a photon with an energy equal to the difference in energ... | so if the absorbed photon has a greater energy than the difference between the two energy levels then where does the rest of the energy go after the electron falls back to it 's ground state ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | we will start by considering the simpler case of what happens when a hydrogen atom absorbs light in the visible or uv region of the electromagnetic spectrum . when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . t... | how can an electron in the hydrogen atom move up to the 6th energy level when excited ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | we will start by considering the simpler case of what happens when a hydrogen atom absorbs light in the visible or uv region of the electromagnetic spectrum . when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . t... | the hydrogen atom has only the first energy level right ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | we will start by considering the simpler case of what happens when a hydrogen atom absorbs light in the visible or uv region of the electromagnetic spectrum . when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . t... | also , it looks like there are four different electrons that are moving back down to the 2nd energy level , one by emitting a violet photon , the second one by emitting a blue photon , the third by green and the fourth by red ; but the hydrogen atom has only one electron , no ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | in order for a transition to occur , the energy of the photon absorbed must be greater than or equal to the difference in energy between the $ 2 $ energy levels . however , once the electron is in the excited , higher energy level , it is in a more unstable position than it was when it was in its relaxed , ground state... | and , why is the ground state level 2 ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | a student finds that the solution ’ s absorbance is $ 0.462 $ . the molar absorptivity of copper ( ii ) sulfate is $ 2.81\text { m } ^ { -1 } \text { cm } ^ { -1 } $ , and the path length of the solution container is $ 1.00\text { cm } $ . what is the concentration of the solution ? | how do you calculate molar absorptivity ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | ( keep in mind that it is the heat energy—a type of electromagnetic radiation—that is able to excite the electrons in each atom . ) if we are testing an unknown sample in the lab to determine which elements it contains , we can always use a flame test , and draw a conclusion based on the color of flame that we see . ( ... | in regard to the flame test in the video , should n't the chloride portion of the compound also add color to the flame along with the partnered cations ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | thus , by examining the colors of light emitted by a particular atom , we can identify that element based upon its emission spectrum . the following shows a few examples of the emission spectra for some common elements : since each emission spectrum is unique to the element , we can think of each of these spectra as be... | in the example emission spectra , what causes the variations in intensity/brightness of the bands ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | depending on the energy of the photon absorbed or emitted , different phenomena can occur . we will start by considering the simpler case of what happens when a hydrogen atom absorbs light in the visible or uv region of the electromagnetic spectrum . when an atom absorbs an uv photon or a photon of visible light , the ... | i 'm confused , it talks about the `` second energy level '' for a hydrogen atom , but a hydrogen atom only uses its 1s orbital ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . this movement of an electron from a lower energy level to a higher energy level , or from a higher energy back down to a lower energy level , is known as a tran... | and becomes a photo electron , why does the electron show this behaviour ( its get excited or get knock off ) ... does that means for photoelectric effect we need higher energy photons or is it something else ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | in order for a transition to occur , the energy of the photon absorbed must be greater than or equal to the difference in energy between the $ 2 $ energy levels . however , once the electron is in the excited , higher energy level , it is in a more unstable position than it was when it was in its relaxed , ground state... | why is ground state the level 2 ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are using . we will begin our discussion by considering uv-vis spectroscopy – that is , what occurs within atoms and molecules when photons in the uv and visible ranges of the sp... | so its only the uv and infrared radiations which are used in spectroscopy ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | thus , by looking at an ir absorption spectrum , a chemist can make some important determinations about a molecule ’ s chemical structure . spectrophotometry : the beer-lambert law the last type of spectroscopy we will consider is that used to determine the concentration of solutions containing colored compounds . if y... | and which type of radiations are used in the last case ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | in order for a transition to occur , the energy of the photon absorbed must be greater than or equal to the difference in energy between the $ 2 $ energy levels . however , once the electron is in the excited , higher energy level , it is in a more unstable position than it was when it was in its relaxed , ground state... | does the ground state of electron have to be level 2 ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | a student finds that the solution ’ s absorbance is $ 0.462 $ . the molar absorptivity of copper ( ii ) sulfate is $ 2.81\text { m } ^ { -1 } \text { cm } ^ { -1 } $ , and the path length of the solution container is $ 1.00\text { cm } $ . what is the concentration of the solution ? | is there a level 1 ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | scientists are able to isolate these different wavelengths by shining the light from excited atoms through a prism , which separates the different wavelengths through the process of refraction . without a prism , however , we do not see these different wavelengths of light one at a time , but all blended together . sti... | what is it about light that allows continuous transmission for literally billions of years through the vacuum of space without attenuation ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | the following shows a few examples of the emission spectra for some common elements : since each emission spectrum is unique to the element , we can think of each of these spectra as being like the “ fingerprint ” of each element . the thin bands indicate the particular wavelengths of light emitted when electrons in ea... | can an electron ever fall from a higher state to a state other than the ground state ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | however , once the electron is in the excited , higher energy level , it is in a more unstable position than it was when it was in its relaxed , ground state . as such , the electron will quickly fall back down to the lower energy level—and it doing so , it emits a photon with an energy equal to the difference in energ... | when we an element some of them has certain colour is it because the electron spinning and radiate some energy that is equal to the wavelength of the colour we say ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | still , the color emitted by each element is quite distinct , which is often useful in a laboratory setting . in the lab , we can often distinguish between elements by using a flame test . the following picture shows the characteristic green flame that appears when copper metal or copper-containing salts is burned . | can we make an electron in the lab ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . this movement of an electron from a lower energy level to a higher energy level , or from a higher energy back down to a lower energy level , is known as a tran... | now when the electron goes back to the lower level , does it release a photon with energy 12j or 15j ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | note that the larger the transition between energy levels , the more energy is absorbed/emitted . therefore , higher frequency photons are associated with the larger energy transitions . for example , when an electron falls from the third energy level to the second energy level , it emits a photon of red light ( wavele... | the photons can have variable amounts of energy right ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | this type of radiation is not energetic enough to excite electrons , but it will cause the chemical bonds within molecules to vibrate in different ways . just as the energy required to excite an electron in a particular atom is fixed , the energy required to change the vibration of a particular chemical bond is also fi... | the em radiations from a particular source may not have the same frequencies for all waves right ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | these atomic emission spectra can be used ( often informally by using a flame test ) to gain insight into the electronic structure and identity of an element . atoms and molecules can also absorb and emit lower frequency , ir radiation . ir absorption spectra are useful to chemists because they indicate the chemical st... | why atoms absorb lower frequency ir radiations ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | we will start by considering the simpler case of what happens when a hydrogen atom absorbs light in the visible or uv region of the electromagnetic spectrum . when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . t... | because it shows yellow photon is absorbed to excite a electron fron 2nd to 6th level and violet to dexcite from 6th to2nd lvl ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | we will start by considering the simpler case of what happens when a hydrogen atom absorbs light in the visible or uv region of the electromagnetic spectrum . when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . t... | why is it that light is only visible when the photon is emitted ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | this movement of an electron from a lower energy level to a higher energy level , or from a higher energy back down to a lower energy level , is known as a transition . in order for a transition to occur , the energy of the photon absorbed must be greater than or equal to the difference in energy between the $ 2 $ ener... | since energy is conserved , should n't there be an equal kind of light when photon is absorbed ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | thus , by examining the colors of light emitted by a particular atom , we can identify that element based upon its emission spectrum . the following shows a few examples of the emission spectra for some common elements : since each emission spectrum is unique to the element , we can think of each of these spectra as be... | what does a magnet field do to a spectra line ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | depending on the frequency of the electromagnetic radiation , chemists can probe different parts of an atom or molecule 's structure using different kinds of spectroscopy . photons in the uv or visible ranges of the em spectrum can have sufficient energy to excite electrons . once those electrons relax back to their gr... | so , electrons ca n't emit uv or infrared waves ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | note that the larger the transition between energy levels , the more energy is absorbed/emitted . therefore , higher frequency photons are associated with the larger energy transitions . for example , when an electron falls from the third energy level to the second energy level , it emits a photon of red light ( wavele... | my question is if photons with a smaller wavelength or higher energy than the ir range also cause vibrations of the chemical bonds next to the excitation of electrons to higher states ? |
introduction to spectroscopy chemists study how different forms of electromagnetic radiation interact with atoms and molecules . this interaction is known as spectroscopy . just as there are various types of electromagnetic radiation , there are various types of spectroscopy depending on the frequency of light we are u... | we will start by considering the simpler case of what happens when a hydrogen atom absorbs light in the visible or uv region of the electromagnetic spectrum . when an atom absorbs an uv photon or a photon of visible light , the energy of that photon can excite one of that atom ’ s electrons to a higher energy level . t... | if ir ca n't excite the electrons of an atom , then what are the paschen , brackett , p-fund and humphry series ? |
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