polyatomic ions

halogen group
hypochlorite, chlorite, chlorate, perchlorate
hypochlorite 
ClO ^-1
chlorite 
ClO2 ^-1
chlorate
ClO3^-1
perchlorate
ClO4^-1
nitrogen group  

nitrite

nitrate

amide

ammonium 

nitrite
NO2^-1
nitrate
NO3^-1
amide  
NH2^-1
AMMONIUM
NH4^+1
CARBON, SILICON,ETC

ACETATE

HYDROGEN CARBONATE(BICARBONATE)

CARBONATE

CYANIDE

SILICATE

BORATE 

ACETATE
C2H302^-1
HYDROGEN CARBONATE(BICARBONATE)
HCO3^-1
CARBONATE
CO3^-2
CYANIDE
CN^-1
SILICATE
SiO3^-2
BORATE
BO3^-3
SULFUR GROUP

HYDROGEN SULFITE(BISULFITE)

SULFITE

SULFATE

HYDROGEN SULFATE(DISULFATE)

THIOSULFATE

THIOCYANATE 

HYDROGEN USLFITE(BISULFITE)
HSO3^-1
SULFITE
SO3^-2
SULFATE  
SO4^-2
HYDROGEN SULFATE(BISULFATE)
HSO4^-1
THIOSULFATE
S2O3^-2
THIOCYANATE
SCN^-1
PHOSPHORUS GROUP

PHOSPHITE

PHOSPHATE

HYDROGEN PHOSPHATE

DIHYDROGEN PHOSPHATE 

PHOSPHITE
PO3^-3
PHOSPHATE
PO4^-3
HYDROGEN PHOSPHATE
HPO4^-2
DIHYDROGEN PHOSPHATE
H2PO4^-1
TRANSITION METALS

DICHROMATE

CHROMATE

PERMANGANATE 

DICHROMATE
Cr2O7^-2
CHROMATE
CrO4^-2
PERMANGANATE
MnO4^-1
OXYGEN GROUP

HYDROXIDE

OXALATE

PEROXIDE

HYDRONIUM 

HYDROXIDE
OH^-1
OXALATE
C2O4^-2
PEROXIDE
O2^-2
HYDRONIUM
H3O+1
x

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