In octahedral complexes of $\mathrm{M}^{2+}$ ion with six strong ligands, the same spin only magneti

Question

In octahedral complexes of $\mathrm{M}^{2+}$ ion with six strong ligands, the same spin only magnetic moment is shown by the metal ions of the configurations\

Professor PC Thomas Classes · Answer

In Octahedral complex $\mathrm{t}_{2} \mathrm{~g}<\mathrm{eg}$ Ligands are strong and $\Delta_{0}$ is large.\ Hence $\Delta_{0}>\mathrm{P}$\ $	herefore \mathrm{d}^{4}$ configuration is $\mathrm{t}_{2} \mathrm{~g}^{4}-2$ unpaired electrons.\ $d^{8}$ configuration is $t_{2} g^{6} e^{2}-2$ unpaired $e^{-}$