Maximum unpaired electrons are present in
$O_2$
$O_2^-$
$O_2^+$
$O_2^{2-}$
The molecular orbital configuration of a diatomic molecule is
$\sigma \,\,1{s^2}\,\,{\sigma ^*}\,\,1{s^2}\,\sigma \,\,2{s^2}\,{\sigma ^*}\,2{s^2}\,\,\sigma \,2p_x^2\,\left\{ {{}_{\pi \,2p_z^2}^{\pi \,2p_y^2}} \right.$
Its bond order is
Use molecular orbital theory to explain why the $Be_{2}$ molecule does not exist.
What is chemical bonding ? How it is formed and give its types.
During the change of $O _{2}$ to $O _{2}^{-}$, the incoming electron goes to the orbital :
વિધાન : Ozone is powerful oxidising agent in comparison to $O_2$.
કારણ : Ozone is diamagnetic but $O_2$ is paramagnetic.