AP CHEM Polyatomics

Nitrite

Nitrite

NO₂^-

Nitrate

NO₃^-

Sulfite

SO₃^2-

Sulfate

SO₄^2-

Hydrogen Sulfate (Bisulfate)

HSO₄^-

Hydroxide

OH^-

Cyanide

CN^-

Thiocyanate

SCN^-

Phosphate

PO₄^3-

Phosphite

PO₃^3-

Hydrogen Phosphate

HPO₄^2-

Dihydrogen Phosphate

H₂PO₄^-

Carbonate

CO₃^2-

hydrogen carbonate (bicarbonate)

HCO₃^-

Hypochlorite

CIO^-

Chlorite

CIO₂^-

Chlorate

CIO₃^-

Perchlorate

CIO₄^-

Hypobromite

BrO^-

Bromite

BrO₂^-

Bromate

BrO₃^-

Perbromate

BrO₄^-

Hypoiodite

IO^-

Iodite

IO₂^-

Iodate

IO₃^-

Periodate

IO₄^-

Permanganate

MnO₄^-

Peroxide

O₂^2-

Dichromate

Cr₂O₇^2-

Chromate

CrO₄^2-

Oxalate

C₂O₄^2-

Amide

NH₂^-

Borate

BO₃^3-

Acetate

C₂H₃O₂^-

Silicate

SiO₃^2-

Ammonium

NH₄⁺

Mercury (1)

Hg₂²⁺

Thiosulfate

S₂O₃^2-