Polyatomic Ions

Silver

Ag⁺¹

Zinc

Zn⁺²

Mercury (I)

Hg₂⁺²

Ammonium

NH₄⁺¹

Nitrite

NO₂^-1

Nitrate

NO₃^-1

Sulfite

SO₃^-2

Sulfate

SO₄^-2

Hydrogen Sulfate (bisulfate)

HSO₄^-1

Hydroxide

OH^-1

Cyanide

CN^-1

Phosphate

PO₄^-3

Hydrogen Phosphate

HPO₄^-2

Dihydrogen Phospate

H₂PO₄^-1

Thiocyanate

NCS^-1

Carbonate

CO₃^-2

Hydrogen Carbonate (bicarbonate)

HCO₃^-1

Hypochlorite

ClO^-1

Chlorite

ClO₂^-1

Chlorate

ClO₃^-1

Perchlorate

ClO₄^-1

Hypobromite

BrO^-1

Bromite

BrO₂^-1

Bromate

BrO₃^-1

Perbromate

BrO₄^-1

Hypoiodite

IO^-1

Iodite

IO₂^-1

Iodate

IO₃^-1

Periodate

IO₄^-1

Selenate

SeO₄^-2

Acetate

C₂H₃O₂^-1

Permanganate

MnO₄^-1

Dichromate

Cr₂O₇^-2

Chromate

CrO₄^-2

Peroxide

O₂^-2

Oxalate

C₂O₄^-2

Amide

NH₂^-1

Borate

BO₃^-3

Thiosulfate

S₂O₃^-2