Practice problem
Which pair of ions have the same number of electrons?
N−N^{-}N−; O+O^{+}O+
N+N^{+}N+; O−O^{-}O−
N2−N^{2-}N2−; O−O^{-}O−
N−N^{-}N−; O2−O^{2-}O2−
Type a concept, like “slope” or “photosynthesis”.
