Anions

ANIONS
Ion Name Ion Formula
fluoride F-
chloride Cl -
bromide Br -
iodide I -
hydride (when bonded with metals) H-
permanganate MnO4-
cyanide CN-
thiocyanate SCN-
hydroxide OH-
nitrate NO3-
nitrite NO2-
hydrogen carbonate HCO3-
hydrogen sulfate HSO4-
hydrogen sulfite HSO3-
dihydrogen phosphate H2 PO4-
dihydrogen phosphite H2 PO3-
acetate C2 H3 O2- or CH3 COO-
hypochlorite ClO- or OCl -
chlorite ClO2-
chlorate ClO3-
perchlorate ClO4-
hypobromite BrO- or OBr -
bromite BrO2-
bromate BrO3-
perbromate BrO4-
hypoiodite IO- or OI -
iodite IO2-
iodate IO3-
periodate IO4-
oxide O2-
peroxide O22-
carbonate CO32-
oxalate C2 O42-
hydrogen phosphate HPO42-
hydrogen phosphite HPO32-

ANIONS
Ion Name Ion Formula
chromate CrO42-
dichromate Cr 2 O72-
sulfate SO42-
sulfite SO32-
sulfide S2-
thiosulfate S2 O32-
phosphate PO43-
phosphite PO33-
nitride N3-
phosphide P3-