Q44 · Practice questionComplex familiar1 mark
QUESTION 44
The diagram shows atomic energy levels and a downward transition . During transition , the atom
(A)
absorbs a photon with energy equal to the level separation
(B)
emits a photon with energy equal to the level separation
(C)
emits an electron with zero kinetic energy
(D)
changes its baryon number
WORKED SOLUTION
1 markAnswer B
ANSWER
B
Worked solution
A downward transition reduces the atom’s energy. The energy difference is released as a photon, .
Select the correct option.
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