Common Ions

Aluminum

Al³⁺

Barium

Ba²⁺

Bromide

Br^-

Calcium

Ca²⁺

chloride

Cl^-

fluoride

F^-

hydrogen

H⁺

iodide

I^-

lithium

Li⁺

magnesium

Mg²⁺

oxide

O^2-

potassium

K⁺

sodium

Na⁺

strontium

Sr²⁺

sulfide

S^2-

ammonium

NH₄⁺

copper (I)

Cu⁺

copper (II)

Cu²⁺

hydronium

H₃O⁺

iron (II)

Fe²⁺

iron (III)

Fe³⁺

lead (II)

Pb²⁺

lead (IV)

Pb⁴⁺

mercury (I)

Hg₂²⁺

mercury (II)

Hg²⁺

nickel

Ni²⁺

silver

Ag⁺

tin (II)

Sn²⁺

tin (IV)

Sn⁴⁺

Zinc

Zn²⁺

acetate

C₂H₃O₂^-

bromate

BrO₃^-

bromite

BrO₂^-

carbonate

CO₃^2-

chlorate

ClO₃^-

chlorite

ClO₂^-

hydroxide

OH^-

iodate

IO₃^-

iodite

IO₂^-

nitrate

NO₃^-

nitrite

NO₂^-

phosphate

PO₄^3-

phosphite

PO₃^3-

sulfate

SO₄^2-

sulfite

SO₃^2-

Chromate

CrO₄^2-

cyanide

CN^-

dichromate

Cr₂O₇^2-

bicarbonate

HCO₃^-

bisulfate

HSO₄^-

hypobromite

BrO^-

hypochlorite

ClO^-

hypoiodite

IO^-

perbromate

BrO₄^-

perchlorate

ClO₄^-

periodate

IO₄^-

permanganate

MnO₄^-

peroxide

O₂^2-

thiocyanate

SCN^-

thiosulfate

S₂O₃^2-