Which electronic level would allow the hydrogen atom to absorb a … - Vidyadip

MCQ

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

A
$3s$
B
$2p$
C
$2s$
✓
$1s$

✓

Answer

Correct option: D.

$1s$

d
(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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