Decreasing order of stability of O _ 2 , O _ 2 ^ - , O _ 2 ^ + and...

B . O = \dfrac{{N}_{b} - {N}_{a}}{2}$<br /><br />${O}_{2}^{-} ⇒ \sigma1{s}^{2} < \overset{*}{\sigma} 1{s}^{2} < \sigma2{s}^{2} < \overset{*}{\sigma} 2{s}^{2} < \sigma2{p}_{z}^{2} < \pi2{p}_{x}^{2} = \pi2{p}_{y}^{2} < \overset{*}{\pi} 2{p}_{x}^{2} = \overset{*}{\pi} 2{p}_{y}^{1}$<br /><br />B.O for${O}_{2}^{-} = 1.5 ⇒ \dfrac{10 - 7}{2} = 1.5$<br /><br />${O}_{2} ⇒ \sigma1{s}^{2} < \overset{*}{\sigma} 1{s}^{2} < \sigma2{s}^{2} < \overset{*}{\sigma} 2{s}^{2} < \sigma2{p}_{z}^{2} < \pi2{p}_{x}^{2} = \pi2{p}_{y}^{2} < \overset{*}{\pi} 2{p}_{x}^{1} = \overset{*}{\pi} 2{p}_{y}^{1}$<br /><br />B.O for${O}_{2} = 2.0 ⇒ \dfrac{10 – 6}{2} = 2$<br /><br />${O}_{2}^{+} ⇒ \sigma1{s}^{2} < \overset{*}{\sigma} 1{s}^{2} < \sigma2{s}^{2} < \overset{*}{\sigma} 2{s}^{2} < \sigma2{p}_{z}^{2} < \pi2{p}_{x}^{2} < \pi2{p}_{y}^{2} < \overset{*}{\pi} 2{p}_{x}^{1} < \overset{*}{\pi} 2{p}_{y}^{0}$<br /><br />B.O for${O}_{2}^{+} = 2.5 ⇒ \dfrac{10 - 5}{2} = 2.5$</p><p>${O}_{2}^{2 -} ⇒ \sigma1{s}^{2} < \overset{*}{\sigma}1{s}^{2} < \sigma2{s}^{2} < \overset{*}{\sigma}2{s}^{2} < \sigma2{p}_{z}^{2} < \pi2{p}_{x}^{2} = \pi2{p}_{y}^{2} < \overset{*}{\pi}2{p}_{x}^{2} = \overset{*}{\pi}2{p}_{y}^{2}$<br /><br />${O}_{2}^{2 +} ⇒ B . O = \dfrac{10 - 4}{2} = 3.0$<br /><br />${O}_{2}^{-} < {O}_{2}^{+} < {O}_{2}^{2 +}$</p>${O}_{2} ⟶ 16{e}^{-}$<br /><br />${O}_{2}^{-} ⟶ 17{e}^{-}$<br /><br />${O}_{2}^{+} ⟶ 15{e}^{-}$<br /><br />${O}_{2}^{2 -} ⟶ 18{e}^{-}$<br /><br />$\begin{cases} & {O}_{2}^{+} & {O}_{2} \\ Bondorder & 2.5 & 2\end{cases}$\begin{cases}{O}_{2}^{-} & {O}_{2}^{2 -} & \\ 1.5 & 1 & \end{cases}$$<br /><br />Stability\alpha Bondorder$

Stability order \left[{O}_{2}^{+} > {O}_{2} > {O}_{2}^{-} > {O}_{2}^{2 -}\right]