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Question
When an electron in a hydrogen atom changes its spin from the same to the opposite direction as the proton, itA) emits an X-ray photon.
B) absorbs a radio wave photon.
C) emits a radio wave photon.
D) absorbs a visible light photon.
E) neither emits nor absorbs a photon.
Answer
This answer is hidden. It contains 1 characters.
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