Q27
In accordance with the selection rules of electric dipole transitions, the 43p1 state of helium can decay by photon emission to the states
A.
21s0, 21p1 and 31d2
B.
31p1, 31d2 and 31s0
C.
33p2, 33d3 and 33p0
D.
23s1, 33d2 and 33d1
AnswerAnswer: Option D
Solution
Answer: Option D
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