Considering only ions with charges of +1, +2, -1 and -2, or neutral atoms, give the symbols for 4 species that are isoelectronic with the oxide ion, o2-.

A species that is isoelectronic with the oxide ion will have the same electron configuration of electrons as as the oxide ion.

4 species that are isoelectronic with the oxide ion are F^(-), Ne, Na^(+), and Mg^(2+).

All of the electron configuration of these ions end at 2p⁶.