Atomic Structure

which electronic level would allow the hydrogen atom to absorb a photon but not emit one ?
a)3s
b)2p
c)2s
d)1s

2 Answers

996
Swarna Kamal Dhyawala ·

hydrogen atom absorbs energy and gets excited in higher orbits and if atom emits electron it comes at lower energy level or orbit.. 1s is the first orbit or lowest energy level so if it emits photon it has no place to go therefore 1s electronic level never emits photon

996
Swarna Kamal Dhyawala ·

(A) 1s

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