All Polyatomic Ions

ammonium

NH₄⁺¹

mercury (I)

Hg₂⁺²

acetate

C₂H₃O₂⁻¹

amide

NH₂⁻¹

arsenite

AsO₃⁻³

arsenate

AsO₄⁻³

bismuthate

BiO₃⁻¹

borate

BO₃⁻³

hypobromite

BrO⁻¹

bromate

BrO₃⁻¹

carbonate

CO₃⁻²

Hydrogen carbonate

HCO₃⁻¹

Chloride

Cl⁻¹

Hypochlorite

ClO⁻¹

Chlorite

ClO₂⁻¹

Perchlorate

ClO₄⁻¹

Chlorate

ClO₃⁻¹

Chromate

CrO₄⁻²

Cyanide

CN⁻¹

Dichromate

Cr₂O₇⁻²

Cyanate

CNO⁻

Thiocyanate

CNS⁻¹

Hexacyanoferrate (II)

Fe(CN)₆⁻⁴

Hexacyanoferrate (III)

Fe(CN)₆⁻³

Hexafluorosilicate

SiF₆⁻²

hydronium

H₃O⁺¹

mercury (II)

Hg⁺²

hydroxide

OH⁻¹

hypoiodite

IO⁻¹

iodate

IO₃ -1

periodate

IO₄⁻¹

permanganate

MnO₄⁻¹

molybdate

MoO₄⁻²

nitrite

NO₂⁻¹

nitrate

NO₃⁻¹

oxalate

C₂O₄⁻²

peroxide

O₂⁻²

phosphite

PO₃⁻³

phosphate

PO₄⁻³

hydrogen phosphate

HPO₄⁻²

Dihydrogen Phosphate

H₂PO₄⁻¹

pyrophosphate

P₂O₇⁻⁴

selenate

SeO₄⁻²

sulfite

SO₃⁻²

sulfate

SO₄⁻²

hydrogen sulfite

HSO₃⁻¹

hydrogen sulfate

HSO₄⁻¹

persulfate

S₂O₈⁻²

thiosulfate

S₂O₃⁻²

silicate

SiO₃⁻²

tartrate

C₄H₄O₆⁻²