The molecular electronic configuration of $H_2^-$ ion is

The bond order of $HeH^{+}$ is

How do you express the bond strength in terms of bond order?

$AX$ is a covalent diatomic molecule where $A$ and $X$ are second row elements of the periodic table. Based on Molecular Orbital Theory,the bond order of $AX$ is $2.5$. The total number of electrons in $AX$ is ........... (Round off to the nearest integer).

The paramagnetic behaviour of $B_2$ is due to the presence of

If the bond order in $C_2$ is '$x$',then the bond order in $B_2$ and $O_2$,respectively,are