The magnetic moment of Ni^{2+} in an aqueous | vedclass

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(D) The electronic configuration of $Ni$ $(Z=28)$ is $[Ar] 3d^8 4s^2$. For $Ni^{2+}$,the configuration is $[Ar] 3d^8$. In the $3d^8$ configuration,the

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$2.84$

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(D) The electronic configuration of $Ni$ $(Z=28)$ is $[Ar] 3d^8 4s^2$. For $Ni^{2+}$,the configuration is $[Ar] 3d^8$. In the $3d^8$ configuration,there are $2$ unpaired electrons. The magnetic moment $\mu$ is calculated using the formula $\mu = \sqrt{n(n+2)} \ B.M.$,where $n$ is the number of unpaired electrons. $\mu = \sqrt{2(2+2)} = \sqrt{8} \approx 2.84 \ B.M.$

The magnetic moment of $Ni^{2+}$ in an aqueous solution is ......... $B.M.$

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