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home / study / science / physics / questions and answers / for each of the following atomic transitions, state ... Question For each of the following atomic transitions, state whether the transition is allowed or forbidden, and if forbidden, what rule is being violated:

Part A 4p?3p The correct answer is NOT "forbidden, because ?l=0"

Part B 3p?1s correct answer = allowed

Part C 4d?2d The correct answer is NOT "forbidden, because ?l=0"

Part D 5d?3s The correct answer is NOT "allowed"

Part E 4s?2p correct answer = allowed

Explanation / Answer

a)  4 p to 3p : delta L is not equal to +-1 =====> forbidden

b) Allowed

c) 4d to 2d : delta L is not equal to +-1 =====> forbidden

d) 5d to 3s : delta L is not equal to +-1 =====> forbidden

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