$\mathrm{H}_2, \mathrm{He}_2^{+}, \mathrm{O}_2^{+}, \mathrm{N}_2^{2-}, \mathrm{O}_2^{2-}, \mathrm{F}_2, \mathrm{Ne}_2^{+}, \mathrm{B}_2$
$Magnetic \ behaviour$ | $Bond order$ | |
$\mathrm{H}_2$ | Diamagnetic | $1$ |
$ \mathrm{He}$ | Paramagnetic | $0.5$ |
$ \mathrm{O}_2^{+}$ | Paramagnetic | $2.5$ |
$ \mathrm{N}_2^{2-}$ | Paramagnetic | $2$ |
$\mathrm{O}_2^{2-}$ | Diamagnetic | $1$ |
$ \mathrm{F}_2$ | Diamagnetic | $1$ |
$ \mathrm{Ne}_2^{+}$ | Paramagnetic | $0.5$ |
$ \mathrm{B}_2$ | Paramagnetic | $1$ |