Common Polytomic Ions

Ap Chemistry - need to know

Acetate

C2H3O2, 1- charge

Nitrite

NO2, 1- charge

Nitrate

NO3, 1- charge

Cyanide

CN, 1- charge

Hydroxide

OH, 1- charge

Chlorite

CIO2, 1- charge

Chlorate

CIO3, 1- charge

Sulfite

SO3, 2- charge

Sulfate

SO4, 2- charge

Carbonate

CO3, 2- charge

Phosphite

PO3, 3- charge

Phosphate

PO4, 3- charge

Ammonium

NH4, 1+ charge

Mercury(l)

Hg2, 2+ charge

Hydrogen sulfate

HSO4, 1- charge

Hydrogen phosphate

HPO4, 2- charge

Dihydrogen phosphate

H2PO4, 1- charge

Thiocyanate

NCS or SCN, 1- charge

Hydrogen carbonate

HCO3, 1- charge

Hypochlorite

ClO or OCl, 1- charge

Perchlorate

ClO4, 1- charge

Permanganate

MnO4, 1- charge

Dichromate

Cr2O7, 2- charge

Chromate

CrO4, 2- charge

Peroxide

O2, 2- charge

Oxalate

C2O4, 2- charge

Thiosulfate

S2O3, 2- charge