Choose TRUE or FALSE for each of these statements.A. Wavelength is directly proportional to energy so if wavelength increases, energy increases as well. B. Microwaves have a longer wavelength than visible light. C. The wavelength of blue light is about 600 nm. D. The line spectrum of an atom shows that electrons can only have a few energies, not any energy. E. When a photon of light is emitted from an atom, that means the electron is losing energy. F. When an electron moves closer to the nucleus, a photon of light is emitted. G. The transition from the third orbit (n=3) to the first orbit (n=1) is lower energy than the transition from the second orbit (n=2) to the first orbit (n=1).
Question
Choose TRUE or FALSE for each of these statements.A. Wavelength is directly proportional to energy so if wavelength increases, energy increases as well. B. Microwaves have a longer wavelength than visible light. C. The wavelength of blue light is about 600 nm. D. The line spectrum of an atom shows that electrons can only have a few energies, not any energy. E. When a photon of light is emitted from an atom, that means the electron is losing energy. F. When an electron moves closer to the nucleus, a photon of light is emitted. G. The transition from the third orbit (n=3) to the first orbit (n=1) is lower energy than the transition from the second orbit (n=2) to the first orbit (n=1).
Solution
A. FALSE. Wavelength is inversely proportional to energy. So, if wavelength increases, energy decreases.
B. TRUE. Microwaves do have a longer wavelength than visible light.
C. FALSE. The wavelength of blue light is about 475 nm.
D. TRUE. The line spectrum of an atom does show that electrons can only have certain specific energies.
E. TRUE. When a photon of light is emitted from an atom, it means the electron has moved from a higher energy level to a lower one, thus losing energy.
F. TRUE. When an electron moves closer to the nucleus, it moves from a higher energy level to a lower one, and a photon of light is emitted.
G. FALSE. The transition from the third orbit (n=3) to the first orbit (n=1) is higher energy than the transition from the second orbit (n=2) to the first orbit (n=1).
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