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S1U2 Atomic Spectra
CAVA Chem 303 S1U2 Atomic Spectra
| Question | Answer |
|---|---|
| When an atom [...] energy, an electron can move from a lower energy state to a higher energy state. | When an atom absorbs energy, an electron can move from a lower energy state to a higher energy state. |
| When the electrons of an atom [...] the right amount of energy, they can move from a lower energy state to a higher one. | When the electrons of an atom absorb the right amount of energy, they can move from a lower energy state to a higher one. |
| when the electrons of an atom [...] energy, they may fall from a higher energy state to a lower one releasing energy; often in the form of light. | when the electrons of an atom lose energy, they may fall from a higher energy state to a lower one releasing energy; often in the form of light. |
| Often the energy given off when electrons fall from a high energy state to a low state is in the form of [...]. | Often the energy given off when electrons fall from a high energy state to a low state is in the form of light. |
| Often the energy given off when [...] fall from a high energy orbital to a low orbital is in the form of light. | Often the energy given off when electrons fall from a high energy orbital to a low orbital is in the form of light. |
| The amount of energy released when an electron falls to a lower energy level can be calculated with [...]'s equation. | The amount of energy released when an electron falls to a lower energy level can be calculated with Planck's equation. |
| Planck's equation is: [...] (Ernie hates Velveeta) | Planck's equation is: E = hv (Ernie hates Velveeta) |
| In Planck's equation ( E = hv ), E = [...]; v = frequency of light (this is actually the Greek letter nu); h = Planck's constant | In Planck's equation ( E = hv ), E = energy; v = frequency of light (this is actually the Greek letter nu); h = Planck's constant |
| An atomic [...] spectrum is a snapshot of how an atom releases energy. | An atomic emission spectrum is a snapshot of how an atom releases energy. |
| Each different type of atom has its own unique set of electrons. Therefore, each different type of atom will create a different pattern of light (atomic [... ...]) when those electrons fall back into place after being "kicked up." | Each different type of atom has its own unique set of electrons. Therefore, each different type of atom will create a different pattern of light (atomic emission spectrum) when those electrons fall back into place after being "kicked up." |
| No two atoms have exactly the same emission [...]. | No two atoms have exactly the same emission spectrum. |
| The atomic emission spectrum is like a [...] for identifying atoms. | The atomic emission spectrum is like a fingerprint for identifying atoms. |
| The uniqueness of each atom's emission [...] has many applications. | The uniqueness of each atom's emission spectrum has many applications. |
| Astronomers may analyze the light coming from a distant star, and pinpoint the [... ... ...] given off. They can then determine the composition of the star by reading those colored lines that make up the spectrum. | Astronomers may analyze the light coming from a distant star, and pinpoint the atomic emission spectra given off. They can then determine the composition of the star by reading those colored lines that make up the spectrum. |
| Scientists use atomic emission spectra to discover the elements in samples of [...] materials. | Scientists use atomic emission spectra to discover the elements in samples of unknown materials. |
| Conversely, scientists can see how a material [*not emits*] light. Chemists can then use this data to identify the material that they are looking at. | Conversely, scientists can see how a material absorbs light. Chemists can then use this data to identify the material that they are looking at. |
| Flame Test: Heat a metal over a flame. The electrons will give off light. The [...] is different for each metal. | Flame Test: Heat a metal over a flame. The electrons will give off light. The color is different for each metal. |
| Photoelectric effect: some materials, when subjected to light, actually generated [...]. | Photoelectric effect: some materials, when subjected to light, actually generated electricity. |
| [...] described the photoelectric effect by using an understanding of how atoms emit energy. | Einstein described the photoelectric effect by using an understanding of how atoms emit energy. |
| The phenomenon of light hitting substances and resulting in electricity is called the [...] effect. | The phenomenon of light hitting substances and resulting in electricity is called the photoelectric effect. |
| Einstein won his only Nobel Prize for the discovery of the [...] effect. | Einstein won his only Nobel Prize for the discovery of the photoelectric effect. |
| Einstein explained the photoelectric effect by saying that if you give enough energy to electrons, they will [... ... ... ...]; thus generating electricity. | Einstein explained the photoelectric effect by saying that if you give enough energy to electrons, they will leave the atom entirely; thus generating electricity. |
| Electricity is the flow of electric [...]. A common form of electricity is the flow of electrons through metal. | Electricity is the flow of electric charge. A common form of electricity is the flow of electrons through metal. |
| Electricity is the flow of electric charge. A common form of electricity is the flow of [...] through metal. | Electricity is the flow of electric charge. A common form of electricity is the flow of electrons through metal. |
| when the electrons of an atom lose energy, they may fall from a higher energy state to a lower one releasing energy; often in the form of [...]. | when the electrons of an atom lose energy, they may fall from a higher energy state to a lower one releasing energy; often in the form of light. |
| In Planck's equation ( E = hv ), E = energy; v = [...] (this is actually the Greek letter nu); h = Planck's constant | In Planck's equation ( E = hv ), E = energy; v = frequency of light (this is actually the Greek letter nu); h = Planck's constant |
| In Planck's equation ( E = hv ), E = energy; v = frequency of light (this is actually the Greek letter nu); h = [...] | In Planck's equation ( E = hv ), E = energy; v = frequency of light (this is actually the Greek letter nu); h = Planck's constant |
Created by:
mr.shapard
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