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  4. A weak field complex of Ni2 + has magnetic moment of 2.82 BM. The number of electron in the t2 g level of Ni2 + will be

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

NTA AbhyasNTA Abhyas 2020Coordination Compounds

Solution:

$Ni^{2 +}=\left(A r\right)3d^{8}$

and as $\mu =2.82$ BM,

So n = 2

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

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