Question

Between $T{i}^{2+}$ and $V^{2+}$ which ion contains more number of unpaired electrons?

Answer 1

$T{i}^{2+}$ has electronic configuration;$\left[Ar\right]3s^2$
$V^{2+}$ has electronic configuration:$\left[Ar\right]3s^{2}3d^1$
Therefore $T{i}^{2+}$ does not have any unpaired electron and $V^{2+}$ have one unpaired electron .