The common polyatomic ions - See the polyatomic ion chart

ClO- 
Hypochlorite ion

Hypochlorite Ion
ClO2-
Chlorite ion

Chlorite Ion
ClO3-
Chlorate Ion

Chlorate Ion
ClO4-
Perchlorate Ion

Perchlorate Ion
BrO- 
Hypobromite Ion

Hypobromite Ion
BrO2-
Bromite Ion

Bromite Ion
BrO3-
Bromate Ion

Bromic Acid
BrO4-
Perbromate Ion

Perbromic Acid
IO- 
Hypoiodite Ion

Hypoiodite Ion
IO2-
Iodite Ion

Iodite Ion
IO3-
Iodoate Ion

Iodoic Acid
IO4-
Periodate Ion

Periodic Acid
HSO2-
Hydrogenhyposulfite ion

Hydrogenhyposulfite ion
HSO3-
Hydrogensulfurite ion

Hydrogensulfurite ion
HSO4-
Hydrogensulfite Ion

Hydrogensulfite Ion
 
SO22-
hyposulfite ion

hyposulfite ion
SO32-
sulfurite ion

sulfurite ion
SO42-
sulfate Ion

sulfate Ion
 
  NO2-
nitrite Ion

Nitrite Ion
NO3-
nitrate Ion

Nitrate Ion
 
H2PO2-
Dihydrogenhypophosphite Ion

Dihydrogenhypophosphorite Ion
H2PO3-
Dihydrogen phosphite Ion

Dihydrogen phosphorite Ion
H2PO4-
Dihydrogenphosphate Ion

Dihydrogenphosphorate Ion
 
HPO22-
Hydrogenhypophosphite Ion

Hydrogenhypophosphorite Ion
HPO32-
Hydrogenphosphite Ion

Hydrogenphosphorite Ion
HPO42-
Hydrogenphosphate Ion

Hydrogenphosphorate Ion
 
PO23-
Hypophosphite Ion

Hypophosphorite Ion
PO33-
Phosphite Ion

Phosphorite Ion
PO43-
Phosphate Ion

Phosphorate Ion
 
    HCO3-
Hydrogencarbonate ion

Hydrogencarbonate ion
 
    CO32-
Carbonate ion

Carbonate ion