Oxygen molecule is paramagnetic in nature. What is the paramagnetic content in terms of magnetic mom

Question

Oxygen molecule is paramagnetic in nature. What is the paramagnetic content in terms of magnetic moment (B.M.) in $\mathrm{O}_{2}^{-}$?\

Professor PC Thomas Classes · Answer

(a): $\mathrm{O}_{2}^{-}:\left(\sigma 1 s^{2}ight)\left(\sigma^{*} 1 s^{2}ight)\left(\sigma 2 s^{2}ight)\left(\sigma^{*} 2 s^{2}ight)\left(\sigma 2 p_{z}^{2}ight)$ $$ \left(\pi 2 p_{x}^{2}=\pi 2 p_{y}^{2}ight)\left(\pi^{*} 2 p_{x}^{2}=\pi^{*} 2 p_{y}^{1}ight) $$ $\mathrm{O}_{2}^{-}$has 1 unpaired electron.\ $\mu=\sqrt{n(n+2)}$ B.M. $=\sqrt{1(1+2)}=\sqrt{3}=1.732$ B.M.\