AP Chem - Common Ions

Cations

Cations

positive, keep name - ex. sodium ion

Anions

negative, ide ending - ex. chloride ion

Nitrite

NO2-

Nitrate

NO3-

SO3 2-

Sulfite

SO4 2-

Sulfate

HSO4 -

hydrogen sulfate (bisulfate)

OH -

Hydroxide

CN-

cyanide

PO4 3-

Phosphate

HPO4 2-

hydrogen phosphate

H2PO4 -

dihydrogen phosphate

NCS-

Thiocyanate

CO3 2-

Carbonate

HCO3-

hydrogen carbonate (bicarbonate)

ClO-

Hypochlorite

ClO2-

Chlorite

ClO3-

Chlorate

ClO4-

Perchlorate

BrO-

hypobromite

BrO2 -

bromite

BrO3 -

bromate

BrO4 -

Perbromate

IO-

hypoiodite

IO2 -

Iodite

IO3 -

Iodate

IO4 -

Periodate

C2H3O2 -

Acetate

MnO4 -

Permanganate

Cr2O7 2-

Dichromate

CrO4 2-

chromate

O2 2-

Peroxide

C2O4 2-

Oxalate

NH2 -

amide

BO3 3-

Borate

S2O3 2-

Thiosulfate