Common Ions and Their Charges

H+

hydrogen

F-

fluoride

Li+

lithium

Cl-

chloride

Na+

sodium

Br-

bromide

K+

potassium

I-

iodide

Rb+

rubidium

O2-

oxide

S2-

sulfide

Be2+

beryllium

Se2-

selenide

Mg2+

magnesium

Te2-

telluride

Ca2+

calcium

N3-

nitride

Sr2+

strontium

P3-

phosphide

Ba2+

barium

As3-

arsenide

Al3+

aluminum

Ga3+

gallium

In3+

indium

Ag+

silver (memorize)

Zn2+

zinc (memorize)

Fe3+

iron(III)

NH4 +

ammonium

Fe2+

iron(II)

NO2 -

nitrite

Cu2+

copper(II)

NO3 -

nitrate

Cu+

copper(I)

SO3 2-

sulfite

Cr3+

chromium(III)

SO4 2-

sulfate

Ni2+

nickel(II)

OH-

hydroxide

Pb4+

lead(IV)

PO4 3-

phosphate

Pb2+

lead(II)

CO3 2-

carbonate

Hg2+

mercury(II)

ClO3 -

chlorate

C2H3O2 -

acetate

H2PO4 -

dihydrogen phosphate

HCO3 -

hydrogen carbonate

HSO4 -

hydrogen sulfate

HS-

hydrogen sulfide

HSO3 -

hydrogen sulfite

ClO-

hypochlorite

IO3 -

iodate

HPO4 2-

monohydrogen phosphate

C2O4 2-

oxalate

ClO4 -

perchlorate

IO4 -

periodate

MnO4 -

permanganate

O2 2-

peroxide

P2O7 4-

pyrophosphate

SCN-

thiocyanate

S2O3 2-

thiosulfate