anonymous
  • anonymous
#1: In the electromagnetic spectrum, which of the following types of radiation has less energy than visible light? A. microwaves B. ultraviolet C. X rays D. gamma rays **my answer: A. microwaves
Chemistry
schrodinger
  • schrodinger
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aaronq
  • aaronq
yep!
anonymous
  • anonymous
#2: Which of the following colors of light has the highest energy? A. red B. green C. blue D. violet **my answer: D. violet
aaronq
  • aaronq
correct!

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anonymous
  • anonymous
#3: What happens when an electron falls to a lower energy level? A. The electron absorbs energy. B. The electron releases energy. C. The electron takes on a higher frequency. D. The electron takes on a lower frequency. **my answer: B. releases energy
aaronq
  • aaronq
once again, correct!
anonymous
  • anonymous
#4: Planck's equation E = h × v is used to determine which of the following? A. the color of the lines on the atomic spectrum for an atom B. the energy released as an electron moves to a lower orbital C. the energy released as an electron moves to a higher orbital D. the number of lines on the atomic spectrum for an atom ***my answer: B
anonymous
  • anonymous
#5: Electron A emits mainly violet light when excited. Electron B emits primarily yellow light when excited. What can be said about the transition between energy electrons A and B? A. The distance between the energy levels for Atom A is greater than for Atom B. B. The distance between the energy levels for Atom A is less than for Atom B. C. The number of energy levels jumped by electrons is more for Atom A than for Atom B. D. The number of energy levels jumped by electrons is more for Atom B than for Atom A. **My answer: A. The distance between the energy levels for Atom A is greater than for Atom B.
anonymous
  • anonymous
#6: According to Einstein, why does the photoelectric effect occur? A. The photoelectric effect changes with the emission of an atomic spectrum. B. The photoelectric effect is related to the number of electrons in the shells around a nucleus. C. The photoelectric effect is due to the release of electrons from atoms. D. The photoelectric effect has to do with the number of atoms in a material. ***im not too sure about this one but i would guess C.... idk is that right??? @aaronq ??
aaronq
  • aaronq
5 and 6 are right, but #4 I'm not sure, because you can't calculate the energy released or absorbed from the excitation or relaxation of electrons with E=hv
anonymous
  • anonymous
nvm oh okay, thanks!! :)
aaronq
  • aaronq
hmm well B sounds right but you'd have to know the wavelength
anonymous
  • anonymous
yeah its oaky, ill ask my teacher :P but i think its B :D
aaronq
  • aaronq
to calculate the energy released from an electron from a specific orbital you'd have to use this
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anonymous
  • anonymous
oh oaky, thanks!! :)
aaronq
  • aaronq
so i think #4 is A haha
anonymous
  • anonymous
oh okay, thanks!! :P
Snowflake13
  • Snowflake13
#4 Is actually b (the energy released as an electron moves to a lower orbital) for those of you who are wondering.

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