Common Ions and Molecular Substances with Formulas

ammonium

NH_4^+

caesium

Cs^+

hydrogen

H^+

lithium

Li^+

potassium

K^+

rubidium

Rb^+

silver

Ag^+

sodium

Na^+

barium

Ba^(2+)

calcium

Ca^(2+)

cobalt

Co^(2+)

copper

Cu^(2+)

iron

Fe^(2+)

lead

Pb^(2+)

magnesium

mg2+

manganese(II)

ma2+

nickel(II)

ni2+

strontium

Sr2+

zinc

Zn2+

aluminium

Al3+

chromium(III)

Cr3+

iron(III)

Fe3+

bromine

Br^−

chlorine

〖Cl〗^−

cyanide

CN^−

dihydrogen phosphate

H_2 PO_4^−

ethanoate

CH_3 COO_^−

fluorine

F^−

hydrogen carbonate

HCO_3^−

hydrogen sulfate

HSO_4^−

hydroxide

OH-

iodide

I-

nitrate

NO3-

nitrite

NO2-

permanganate

MnO4-

carbonate

CO3-2

chromate

CrO42-

dichromate

Cr2O72-

hydrogen phosphate

HPO_4^(2−)

oxalate

C_2 O_4^(2−)

oxide

O^(2−)

sulphate

SO_4^(2−)

sulphide

S^(2−)

sulphite

SO_3^(2−)

nitride

N^(3−)

phosphate

PO_4^(3−)

ammonia

NH3

water

H20

hydrogen peroxide

H2O2

ethanoic acid

CH3COOH

hydrochloric acid

HC

nitric acid

HN"O" _"3"

carbonic acid

H_2 C"O" _"3"

sulfuric acid

H_2 S"O" _"4"

sulfurous acid

H_2 S"O" _"3"

phosphuric acid

H_3 P"O" _"4"