Common Polyatomics Chart

These are essential polyatomics to know for Chemistry

Dihydrogen phosphate

H₂PO₄^-

Acetate

C₂H₃O₂^-

Hydrogen sulfite

HSO₃^-

Hydrogen sulfate

HSO₄^-

Hydrogen carbonate

HCO₃^-

Nitrite

NO₂^-

Nitrate

NO₃^-

Cyanide

CN^-

Hydroxide

OH^-

Permanganate

MnO₄^-

Hypochlorite

ClO^-

Chlorite

ClO₂^-

Chlorate

ClO₃^-

Perchlorate

ClO₄^-

Amide

NH₂^-

Periodate

IO₄^-

Iodate

IO₃^-

Bromate

BrO₃^-

Thiocyanate

SCN^-

Hydrogen phosphate

HPO₄^2-

Oxalate

C₂O₄^2-

Sulfite

SO₃^3-

Sulfate

SO₄^2-

Carbonate

CO₃^2-

Chromate

CrO₄^2-

Dichromate

Cr₂O₇^2-

Silicate

SiO₃^2-

Peroxide

O₂^2-

Thiosulfate

S₂O₃^2-

Selenate

SeO₄^2-

Tartrate

C₄H₄O₆^2-

Phosphite

PO₃^3-

Phosphate

PO₄^3-

Arsenate

As₂O₃^3-

Ammonium

NH₄⁺