Question

Give two example of each of divalent cations and divalent anions.

Answer 1

• Metals form univalent, divalent, trivalent, and tetravalent cations by losing their valence electrons.
• Non-metals form divalent, trivalent, and tetravalent anions by gaining their valence electrons.
• Examples: bivalent cation: ${\mathrm{Mg}}^{2+},{\mathrm{Ca}}^{2+}$

bivalent anions:${\mathrm{O}}^{2-},{\mathrm{S}}^{2-}$