Question: According to molecular orbital theory, which of the following is true with respect to $\mathrm{Li}_{2}^{+}$and $\mathrm{Li}_{2}^{-} ?$
Both are unstable
$\mathrm{Li}_{2}^{+}$is unstable and $\mathrm{Li}_{2}^{-}$is stable
$\mathrm{Li}_{2}^{+}$is stable and $\mathrm{Li}_{2}^{-}$is unstable
Both are stabel
Correct Option: , 4
Solution: