Chemistry Unit 3 Polyatomic Ions

Ammonium

NH4
1+

Acetate

C2H3O2
1-

Bicarbonate or Hydrogen Carbonate

HCO3
1-

Perchlorate

ClO4
1-

Chlorate

ClO3
1-

Chlorite

ClO2
1-

Hypochlorite

ClO
1-

Cyanide

CN
1-

Hydroxide

OH
1-

Nitrate

NO3
1-

Nitrite

NO2
1-

Permanganate

MnO4
1-

Carbonate

CO3
2-

Chromate

CrO4
2-

Dichromate

Cr2O7
2-

Sulfate

SO4
2-

Sulfite

SO3
2-

Phosphate

PO4
3-

Phosphite

PO3
3-