**
O
Oxygen
Oxygen
O
H
Hydrogen
Hydrogen
H
Na
Sodium
Sodium
Na
Li
Lithium
Lithium
Li
C
Carbon
Carbon
C
Mg
Magnesium
Magnesium
Mg
N
Nitrogen
Nitrogen
N
He
Helium
Helium
He
F
Fluorine
Fluorine
F
Ne
Neon
Neon
Ne
Aluminium
Al
Al
Aluminium
Si
Silicon
Silicon
Si