Hydrogen
Helium
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
Sodium
Magnesium
Aluminum
Silicon
Phosphorus
Sulfur
Chlorine
Argon
Potassium
Ca
Cr
Mn
Fe
Co
Ni
Cu
Zn
As
Se
Br
Sr
Ag
Sn
I
Pt
Au
Hg
Pb
