Question

The number of unpaired electrons in $F{e}^{3+}$ ion is_____.

Answer 1

Answer: 5

Electronic configuration of $F{e}^{3+}$ is
$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^5$
No, of unpaired $e^{-}=5$