The number of species from the following which are paramagnetic and with bond order equal to one is___________
$\mathrm{H}_2, \mathrm{He}_2^{+}, \mathrm{O}_2^{+}, \mathrm{N}_2^{2-}, \mathrm{O}_2^{2-}, \mathrm{F}_2, \mathrm{Ne}_2^{+}, \mathrm{B}_2$
$3$
$7$
$6$
$1$
In the conversion of $N_2$ into $N_2^+$ the electron will be lost from which of the following molecular orbital ?
Which of the following statement is correct about $I^+_3$ and $I^-_3$ molecular ions ?
The paramagnetic molecule at ground state among the following is
Number of paramagnetic oxides among the following given oxides is ..... .
$\mathrm{Li}_{2} \mathrm{O}, \mathrm{CaO}, \mathrm{Na}_{2} \mathrm{O}_{2}, \mathrm{KO}_{2}, \mathrm{MgO}$ and $\mathrm{K}_{2} \mathrm{O}$
Give electron configuration, bond order magnetic property and energy diagram for Lithium $\left( {{\rm{L}}{{\rm{i}}_2}} \right)$ molecule.