Multiple Choice
When an electron in a hydrogen atom changes its spin from the same to the opposite direction as the proton, it
A) absorbs a radio wave photon.
B) emits an X- ray photon.
C) emits a radio wave photon.
D) absorbs a visible light photon.
E) neither emits nor absorbs a photon.
Correct Answer:

Verified
Correct Answer:
Verified
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