Polyatomic Ions (29)

Ammonium

NH₄⁺

Acetate

CH₃COO^-

or C₂H₃O₂^-

Bromate

BrO₃^-

Carbonate

CO₃^2-

Chlorate

ClO₃^-

Chlorite

ClO₂^-

Chromate

CrO₄^2-

Cyanide

CN^-

Dichromate

Cr₂O₇^2-

Hydrogen Carbonate

or Bicarbonate

HCO₃^-

Hydrogen Sulfate

or Bisulfate

HSO₄^-

Hydrogen Phosphate

or Biphosphate

HPO₄ ^2-

Hydroxide

OH^-

Hypochlorite

ClO^-

Iodate

IO₃^-

Nitrate

NO₃^-

Nitrite

NO₂^-

Oxalate

C₂O₄ ^2-

Perchlorate

ClO₄ ^-

Periodate

IO₄ ^-

Permanganate

MnO₄ ^-

Peroxide

O₂^2-

Phosphate

PO₄ ^3-

Phosphite

PO₃ ^3-

Silicate

SiO₄ ^4-

Sulfate

SO₄^2-

Sulfite

SO₃ ^2-

Thiocyanate

SCN^-

Thiosulfate

S₂O₃^2-