IB Chem Polyatomic Ions

NH4+

Ammonium Ion

HCO3-

Hydrogen carbonate ion or Bicarbonate Ion

ClO-

Hypochlorite Ion

ClO2-

Chlorite ion

ClO3-

Chlorate ion

ClO4-

Perchlorate ion

NO2-

Nitrite ion

OH-

Hydroxide Ion

IO3-

Iodate ion

BrO3-

Bromate ion

NO3-

Nitrate ion

CN-

Cyanide ion

C2H3O2-

Acetate ion

CH3COO-

Ethanoate ion

MnO4-

Permanganate ion

S2O3 2-

Thiosulfate ion

CO3 2-

Carbonate ion

Cr2O7 2-

Dichromate ion

CrO4 2-

Chromate ion

SO3 2-

Sulfite ion

SO4 2-

Sulfate ion

PO4 3-

Phosphate ion