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Which electronic level would allow the h...

Which electronic level would allow the hydrogen atom to absorbs a photon but not to emit a photon

A

3s

B

2p

C

2s

D

1s

Text Solution

Verified by Experts

The correct Answer is:
D
1s-orbital is of lowest energy. Absorption of photon can raise the electron in higher energy state but emission is not possible.
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