The second ionisation potentials in electron volts of oxygen and fluorine atoms are respectively given by
 

Successive ionisation energies of an element $\text{'}\mathrm{X}\text{'}$ are given below (in $\mathrm{k} \mathrm{cal}$): 

Electronic configuration of the element $\text{'}\mathrm{X}\text{'}$ is:

Consider the following conversions

$\text{(i) }\mathrm{O}\left(\mathrm{g}\right)+{\mathrm{e}}^{-}⟶{\mathrm{O}}^{-}\left(\mathrm{g}\right);{\mathrm{\Delta H}}_1$

$\text{(ii) }\mathrm{F}\left(\mathrm{g}\right)+{\mathrm{e}}^{-}⟶{\mathrm{F}}^{-}\left(\mathrm{g}\right);{\mathrm{\Delta H}}_2$

$\text{(iii) }\mathrm{Cl}\left(\mathrm{g}\right)+{\mathrm{e}}^{-}⟶{\mathrm{Cl}}^{-}\left(\mathrm{g}\right);{\mathrm{\Delta H}}_3$

$\text{(iv) }\mathrm{Na}\left(\mathrm{g}\right)⟶{\mathrm{Na}}^{+}\left(\mathrm{g}\right);{\mathrm{\Delta H}}_4$

incorrect statement is:-