1+

2+

Hydronium H₃O⁺

dimercury Hg₂²⁺

Ammonium NH₄⁺

1-

2-

3-

Acetate C₂H₃O₂^-

Bicarbonate HCO₃^-2

Aluminate AlO₂^-

Carbonate CO₃^-2

Arsenite ASO₃^-3

Hypobromite BrO^-

Chromate CrO₄^-2

Borate BO₃^-3

Bromite BrO₂^-

dichromate Cr₂O₇^-2

Phosphate PO₄^-3

Bromate BrO₃^-

Carbide C₂^-2

Phosphite PO₃^-3

Perbromate BrO₄^-

Hydroxide OH^-

Hypochlorite ClO^-

Hydrogen Phosphite PO₃^-2

Perchlorate ClO₄^-

Hydrogen Phosphate HPO₄^-2

Chlorate ClO₃^-

Oxalate C₂O₄^-2

Chlorite ClO₂^-

Peroxide O₂^-2

Cyanide CN^-

tartrate C₄H₄O₆^-2

Hypoiodite IO^-

disulfide S₂^-2

Iodate IO₃^-

Sulfate SO₄^-2

Iodite IO₂^-

Sulfite SO₃^-2

Periodate IO₄^-

Silicate SiO₃^-2

Hydrogen carbonate HCO₃^-

Hydrogen Sulfate HSO₄^-

Hydrogen Sulfite HSO₃^-

-4

Hydrogen Oxalate HC₂O₄^-

Pyrophosphate P₂O₇^-4

dihydrogen Phosphate H ₂ PO₄^-

Hydrogen Sulfide HS^-

Permanganate MnO₄^-

Nitrite NO₂^-

Nitrate NO₃^-