AP Chemistry Ion Formulas

Ammonium

NH₄⁺

Mercury (I)

Hg₂²⁺

Acetate

C₂H₃O₂^-

Bicarbonate

HCO₃^-

Carbonate

CO₃^2-

Bromate

BrO₃^-

Perchlorate

ClO₄^-

Chlorate

ClO₃^-

Chlorite

ClO₂^-

Hypochlorite

ClO^-

Cyanide

CN^-

Dihydrogen phosphate

H₂PO₄^-

Hydrogen phosphate

HPO₄^2-

Phosphate

PO₄^3-

Hydrogen Sulfate

HSO₄^-

Hydroxide

OH^-

Periodate

IO₄^-

Iodate

IO₃^-

Nitrate

NO₃^-

Nitrite

NO₂^-

Permanganate

MnO₄^-

Chromate

CrO₄^2-

Dichromate

Cr₂O₇^2-

Oxalate

C₂O₄^2-

Peroxide

O₂^2-

Silicate

SiO₃^2-

Sulfate

SO₄^2-

Sulfite

SO₃^2-

Thiosulfate

S₂O₃^2-

Nitride

N^3-

Oxide

O^2-

Fluoride

F^-

Phosphide

P^3-

Sulfide

S^2-

Chloride

Cl^-

Selenide

Se^2-

Bromide

Br^-

Telluride

Te^2-

Iodide

I^-

Hydrogen

H⁺

Lithium

Li⁺

Sodium

Na⁺

Potassium

K⁺

Rubidium

Rb⁺

Cesium

Cs⁺

Magnesium

Mg²⁺

Calcium

Ca²⁺

Strontium

Sr²⁺

Barium

Ba²⁺

Aluminum

Al³⁺

Gallium

Ga³⁺

Copper (I)

Cu⁺

Copper (II)

Cu²⁺

Cobalt (II)

Co²⁺

Cobalt (III)

Co³⁺

Chromium (II)

Cr²⁺

Chromium (III)

Cr³⁺

Iron (II)

Fe²⁺

Iron (III)

Fe³⁺

Manganese (II)

Mn²⁺

Manganese (IV)

Mn⁴⁺

Nickel (II)

Ni²⁺

Nickel (III)

Ni³⁺

Mercury (I)

Hg₂²⁺

Mercury (II)

Hg²⁺

Tin (II)

Sn²⁺

Tin (IV)

Sn⁴⁺

Lead (II)

Pb²⁺

Lead (IV)

Pb⁴⁺

Bismuth (III)

Bi³⁺

Bismuth (V)

Bi⁵⁺

Cadmium

Cd²⁺

Silver

Ag⁺

Zinc

Zn²⁺