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Chery Chery
wrote...
Posts: 3587
7 years ago
When an atom changes its energy state from n = 4 to n = 2
A) a photon is emitted.
B) a photon is absorbed.
C) two photons are emitted.
D) two photons are absorbed.
E) None of the given answers are correct.
Textbook 
College Physics

College Physics


Edition: 1st
Authors:
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lyalllyall
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Posts: 626
7 years ago
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Chery Author
wrote...
7 years ago
Thanks a million
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