Hydrogen
H
Helium
He
Lithium
Li
Berylium
Be
Boron
B
Carbon
C
Nitrogen
N
Oxygen
O
Fluorine
F
Neon
Ne
Sodium
Na
Magnesium
Mg
Aluminium
Al
Silicon
Si
Phosphorus
P
Sulfur
S
Chlorine
Cl
Argon
Ar
Potassium
K
Calcium
Ca
Chromium
Cr
Manganese
Mn
Iron
Fe
Cobalt
Co