Cations and Anions

Hydrogen ion

H+

Lithium ion

Li+

Sodium ion

Na+

Potassium ion

K+

Beryllium ion

Be2+

Magnesium ion

Mg2+

Calcium ion

Ca2+

Strontium ion

Sr2+

Barium ion

Ba2+

Radium ion

Ra2+

Aluminum ion

Al3+

Zinc ion

Zn2+

Cadmium ion

Cd2+

Silver ion

Ag+

Ammonium ion

NH4+

Copper (i)

Cu+

Copper (ii)

Cu2+

Mercury (i)

Hg2+

Mercury (ii)

Hg2+

Cobalt (ii)

Co2+

Cobalt (iii)

Co3+

Nickel (ii)

Ni2+

Nickel (iii)

Ni3+

Lead (ii)

Pb2+

Lead (iv)

Pb4+

Manganese (ii)

Mn2+

Manganese (iv)

Mn4+

Iron (ii)

Fe2+

Iron (iii)

Fe3+

Tin (ii)

Sn2+

Tin (iv)

Sn4+

Chromium (ii)

Cr2+

Chromium (iii)

Cr3+

Fluoride

F-

Chloride

Cl-

Bromide

Br-

Iodide

I-

Oxide

O2-

Sulfide

S2-

Nitride

N3-

Phosphide

P3-

Hydroxide

OH-

Cyanide

CN-

Hypochlorite

ClO-

Chlorite

ClO2-

Chlorate

ClO3-

Perchlorate

ClO4-

acetate

C2H3O2-

Nitrite

NO2-

Nitrate

NO3-

Permanganate

MnO4-

Carbonate

CO3 2-

Hydrogen carbonate (bicarbonate)

HCO3-

Chromate

CrO4 2-D

Dichromate

Cr2O7 2-

Oxalate

C2O4 2-

Sulfite

SO3 2-

Hydrogen sulfite (bisulfite)

HSO3 -

Sulfate

SO4 2-

Hydeogen sulfate (bisulfate)

HSO4 -

Peroxide

O2 2-

Borate

BO3 3-

Phosphite

PO3 3-

Phosphate

PO4 3-

Hydrogen Phosphate (biphosphate)

HPO4 2-

Arsenate

AsO4 3-