Most Common Cations and Anions
Silver ion
Ag⁺
Aluminum ion
Al³⁺
Barium ion
Ba²⁺
Bromide ion
Br⁻
Cyanide ion
CN⁻
Carbonate ion
CO₃²⁻
Calcium ion
Ca²⁺
Cadmium ion
Cd²⁺
Chlorate ion
ClO₃⁻
Perchlorate ion
ClO₄⁻
Chloride ion
Cl⁻
Cobalt(II) or cobaltous ion
Co²⁺
Chromate ion
CrO₄²⁻
Chromium(III) or chromic ion
Cr³⁺
Dichromate ion
Cr₂O₇²⁻
Cesium ion
Cs⁺
Copper(II) or cupric ion
Cu²⁺
Copper(I) or cuprous ion
Cu⁺
Acetate ion
C₂H₃O₂⁻
Iron(II) or ferrous ion
Fe²⁺
Iron(III) or ferric ion
Fe³⁺
Fluoride ion
F⁻
Mercury(II) or mercuric ion
Hg²⁺
Mercury(I) or mercurous ion
Hg₂²⁺
Hydrogen ion
H⁺
Hydride ion
H⁻
Iodide ion
I⁻
Potassium ion
K⁺
Lithium ion
Li⁺
Magnesium ion
Mg²⁺
Permanganate ion
MnO₄⁻
Manganese(II) or manganous ion
Mn²⁺
Ammonium ion
NH₄⁺
Nitrate ion
NO₃⁻
Sodium ion
Na⁺
Nicklel(II) or nickelous ion
Ni²⁺
Nitride ion
N³⁻
Hydroxide ion
OH⁻
Oxide ion
O²⁻
Peroxide ion
O₂²⁻
Phosphate ion
PO₄³⁻
Lead(II) or plumbous ion
Pb²⁺
Sulfite ion
SO₃²⁻
Sulfate ion
SO₄²⁻
Tin(II) or stannous ion
Sn²⁺
Strontium ion
Sr²⁺
Sulfide ion
S²⁻
Zinc ion
Zn²⁺