Question

bond order in He+2 ion is....?

Answer 1

$Answer:$

Helium molecule contains four electrons.

electron configuration of helium molecule is

$H_2=σ1s^2,σ^*1s^2$

$bond order= \frac{Nb - Na}{2} = \frac{2 - 2}{2} = 0$

Helium molecule is therefore unstable and does not exist.

$hope it helps✔️✔️$