Air

29

Aluminium(Al)

27

Ammonia(NH3)

17

Argon(Ar)

40

Carbon Dioxide(CO2)

44

Copper(Cu)

63.6

Dichlorodifluoromethane(CCI2F2)

121

Ethanol(C2H5OH)

46.1

Gold(Au)

197

Helium(He)

4

Hydrogen(H2)

2.02

Iron(Fe)

55.9

Lead(Pb)

207

Mercury(Hg)

201

Nickel(Ni)

58.7

Nitrogen(N2)

28

Oxygen(O2)

32

Silver(Ag)

108

Tin(Sn)

119

Water (pure)(H2O)

18

Zinc(Zn)

65.4