POLYATOMIC IONS

1- Charge
2- Charge
3- Charge
acetate
C2H3O2
hydrogen phosphate
HPO42-
phosphate
PO43-
hydrogen sulfite
HSO3-

oxalate
C2O42-

phosphite
PO33-
hydrogen sulfate
HSO4-

peroxide
O22-

arsenate
AsO43-
hydrogen carbonate
HCO3-

sulfite
SO32-

borate
 B3O42-
nitrite
NO2 
sulfate
SO42-



nitrate
NO3 
carbonate
CO32-



cyanide
CN 
chromate
CrO42-

1+ Charge
hydroxide
OH 
dichromate
Cr2O72-

ammonium  NH4+
permanganate
MnO4-

silicate
SiO32-

 
hypochlorite
CIO-
oxalate
C2O42-


 
chlorite
CIO2-

tetraborate
B4O72-


 
chlorate
CIO3-


 

 
perchlorate
CIO4-

 

 
dihydrogen phosphate
H2PO4- 

 

 
amide
NH2-


 

 
iodate
IO3-


 

 
bromate
BrO3-


 

 
benzoate
C7H5O2-





hydrogen sulfide
HS-






thiocyanate
SCN-






thiosulphate
S2O32-