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Question
When an electron de-excites from the third quantum level to the second, and then to the ground state, two photons are emitted. The sum of the emitted frequencies equals the frequency of the single photon that would be emitted if de-excitation were from the third toA) the second level.
B) the ground state.
C) any other level.
D) none of the above
Answer
This answer is hidden. It contains 1 characters.
Related questions
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