Common Ions

Aluminum

Al³⁺

Ammonium

NH₄⁺

Arsenic (III)

As³⁺

Arsenic (V)

As⁵⁺

Barium

Ba²⁺

Bismuth (III)

Bi³⁺

Bismuth (V)

Bi⁵⁺

Cadmium

Cd²⁺

Calcium

Ca²⁺

Chromium (II)

Cr²⁺

Chromium (III)

Cr³⁺

Cobalt (II)

Co²⁺

Cobalt (III)

Co³⁺

Copper (I) (Cuprous)

Cu⁺

Copper (II) (Cupric)

Cu²⁺

Hydrogen

H⁺

Hydronium

H₃O⁺

Iron (II) (Ferrous)

Fe²⁺

Iron (III) (Ferric)

Fe³⁺

Lead (II) (Plumbous)

Pb²⁺

Lead (IV) (Plumbic)

Pb⁴⁺

Lithium

Li⁺

Magnesium

Mg²⁺

Manganese (II)

Mn²⁺

Manganese (IV)

Mn⁴⁺

Mercury (I) (Mercurous)

Hg₂²⁺

Mercury (II) (Mercuric)

Hg²⁺

Nickel (II)

Ni²⁺

Potassium

K⁺

Silver

Ag⁺

Strontium

Sr²⁺

Tin (II) (Stannous)

Sn²⁺

Tin (IV) (Stannic)

Sn⁴⁺

Zinc

Zn²⁺

Hypobromite

BrO⁻

Bromite

BrO₂⁻

Arsenate

AsO₄³⁻

Bromide

Br⁻

Bromate

BrO₃⁻

Perbromate

BrO₄⁻

Carbonate

CO₃²⁻

Hypochlorite

ClO⁻

Chlorite

ClO₂⁻

Chlorate

ClO₃⁻

Perchlorate

ClO₄⁻

Chloride

Cl⁻

Chromate

CrO₄²⁻

Cyanide

CN⁻

Dichromate

Cr₂O₇²⁻

Acetate

C₂H₃O₂⁻ or CH₃COO⁻

Flouride

F⁻

Hydride

H⁻

Hydrogen Carbonate (Bicarbonate)

HCO₃⁻

Hydrogen Oxalate (Binoxalate)

HC₂O₄⁻

Hydrogen Phosphate

HPO₄²⁻

Hydrogen Sulfate (Bisulfate)

HSO₄⁻

Hydrogen Sulfide (Bisulfide)

HS⁻

Hydroxide

OH⁻

Hypoiodite

IO⁻

Hydrogen Sulfite (Bisulfite)

HSO₃⁻

Iodite

IO₂⁻

Iodate

IO₃⁻

Periodate

IO₄⁻

Iodide

I⁻

Permanganate

MnO₄⁻

Nitrate

NO₃⁻

Nitride

N³⁻

Nitrite

NO₂⁻

Oxalate

C₂O₄²⁻

Oxide

O²⁻

Peroxide

O₂²⁻

Phosphate

PO₄³⁻

Phosphide

P³⁻

Phosphite

PO₃³⁻

Sulfate

SO₄²⁻

Sulfite

SO₃²⁻

Thiosulfate

S₂O₃²⁻

Thiocyanate

SCN⁻

Sulfide

S³⁻

Sodium

Na⁺

Dihydrogen Phosphate

H₂PO₄⁻