Ba^2+
Barium
Cadmium
Cd^2+
Calcium
Ca^2+
Cr^2+
Chromium or chromous
Co^2+
Colbalt or cobaltous
Cu^2+
Copper(II) or cupric
Iron(II) or ferrous
Fe^2+
Lead(II) or plumbous
Pb^2+
Magnesium
Mg^2+
Mn^2+
Manganese (II) or manganous
Mercury (I) or mercurous
Hg2^2+
Hg^2+
Mercury(II) or mercuric
Strontium
Sr^2+
Nickel(II)
Ni^2+
Sn^2+
Tin(II) or stannous
Zinc
Zn^2+
CO3^2-
Carbonate
Chromate
CrO4^2-
Dichromate
Cr2O7^2-
Hydrogen phosphate
HPO4^2-
Oxide
O2-
Peroxide
O2^2-
SO4^2-
Sulfate
S^2-
Sulfide