Among the following the isoelectronic species is/are

$$\begin{gathered} \left(\mathrm{i}\right) {\mathrm{O}}^{2-}, {\mathrm{F}}^{–}, {\mathrm{Na}}^{+}, {\mathrm{Mg}}^{2+} \\ \left(\mathrm{ii}\right) {\mathrm{Na}}^{+}, {\mathrm{Mg}}^{+2}, {\mathrm{Al}}^{3+}, {\mathrm{F}}^{–} \\ \left(\mathrm{iii}\right) {\mathrm{N}}^{3–}, {\mathrm{O}}^{2–}, {\mathrm{F}}^{–}, \mathrm{Ne} \end{gathered}$$