Question

A weak field complex of $N{i}^{2+}$ has magnetic moment of 2.82 BM. The number of electron in the $t_{2g}$ level of $N{i}^{2+}$ will be

Answer 1

Answer: 6

$N{i}^{2+}=\left(Ar\right)3d^8$

and as $\mu =2.82$ BM,

So n = 2

Thus, $t_{2g}^6{e}_g^2$ configuration is present here.

Hence number of electrons in $t_{2g}$ are 6.