AP Chemistry: Common Ions

Aluminum

Al+3

Ammonium

NH4+

Barium

Ba+2

Cadmium

Cd+2

Calcium

Ca+2

Chromium (II)

Cr+2

Chromium (III)

Cr+3

Cobalt (II)

Co+2

Copper (I)

Cu+

Copper (II)

Cu+2

Hydrogen

H+

Hydronium

H3O+

Iron (II)

Fe+2

Iron (III)

Fe+3

Lead (II)

Pb+2

Lead (IV)

Pb+4

Lithium

Li+

Magnesium

Mg+2

Manganese (II)

Mn+2

Mercury (I)

Hg2+2

Mercury (II)

Hg+2

Potassium

K+

Silver

Ag+

Strontium

Sr+2

Sodium

Na+

Tin (II)

Sn+2

Tin (IV)

Sn+4

Zinc

Zn+2

Acetate

C2H3O2-/CH3COO-

Bromide

Br-

Carbonate

CO3-2

Hydrogen Carbonate Ion/Bicarbonate

HCO3-

Chlorate

ClO3-

Chloride

Cl-

Chlorite

ClO2-

Chromate

CrO4-2

Cyanide

CN-

Dichromate

Cr2O7-2

Flouride

F-

Hydride

H-

Hydroxide

OH-

Hypochlorite

ClO-

Iodate

IO-3

Iodide

I-

Nitrate

NO3-

Nitride

N-3

Nitrite

NO2-

Oxalate

C2O4-2

Oxide

O-2

Hydrogen Oxalate Ion

HC2O4-

Perchlorate

ClO4-

Permanganate

MnO4-

Peroxide Ion

O2-2

Phosphate

PO4-3

Monohydrogen Phosphate

HPO4-2

Dihydrogen Phosphate

H2PO4-

Silicate

SiO3-2

Sulfate

SO4-2

Hydrogen Sulfate Ion/Bisulfate

HSO4-

Thiosulfate

S2O3-2

Sulfide

S-2

Hydrogen Sulfide Ion/Bisulfide

HS-

Sulfite

SO3-2

Hydrogen Sulfite Ion/Bisulfite

HSO3-