# 8.24 Calculate the number of unpaired electrons in the following gaseous ions:$(iii)\; V^{3+}$

Electronic configuration of $V = 3d^{3}4s^{2}$. The number of unpaired electron in $V^{3+}$ is 2
$V^{3+}(Z=23) =\left [ Ar \right ] 3d^{2}$