MCQ
Highest energy will be absorbed to eject out the electron in the configuration
  • A
    $1{s^2}2{s^2}2{p^1}$
  • $1{s^2}2{s^2}2{p^3}$
  • C
    $1{s^2}2{s^2}2{p^2}$
  • D
    $1{s^2}2{s^2}2{p^4}$

Answer

Correct option: B.
$1{s^2}2{s^2}2{p^3}$
b
(b)Due to high stability of half-filled orbitals.

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