Question

Compare the relative stability, bond order , bond dissociation energies & Bond lengths of following species
N2, N2
+
, N2- & N2
2-

Answer 1

Answer:

By MOT, the bond orders of both are 2.5. Now acc to MOT only, the compound having more electrons in antibonding orbitals will form a weaker bond and a longer bond., IF their bond orders are equal. N2- has 5e- in antibonding while N2+ has 4. So, N2+ will make a stronger bond and will have a shorter bond length.