Polyatomic Ions

Hg_2²⁺

Mercury (I): Cation

NH_4⁺

Ammonium: Cation

NO₂^-

Nitrite

NO₃^-

Nitrate

SO₃^2-

Sulfite

SO₄^2-

Sulfate

HSO₄^-

Hydrogen sulfate (bisulfate)

S₂O₃^2-

Thiosulfate

PO₄^3-

Phosphate

HPO₄^2-

Hydrogen Phosphate

H₂PO₄^-

Dihydrogen Phosphate

CO₃^2-

Carbonate

HCO₃^-

Hydrogen carbonate (bicarbonate)

C₂H₃O₂^-

Acetate

ClO^-

Hypochlorite

ClO₂^-

Chlorite

ClO₃^-

Chlorate

ClO₄^-

Perchlorate

BrO₃^-

Bromate (& hypo-ite, ite, per-ate)

IO₃^-

Iodate(& hypo-ite, ite, per-ate)

OH^-

Hydroxide

CN^-

Cyanide

SCN^-

Thiocyanate

MnO₄^-

Permanganate

Cr₂O₇^2-

Dichromate

CrO₄^2-

Chromate

O₂^2-

Peroxide

C₂O₄^2-

Oxalate

NH₂^-

Amide

Borate