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Sodium
Na
Hydrogen
H
Iluminum
Li
Calcium
Ca
Iron
Fe
Lead
Pb
Chromium
Cr
Gold
Au
Potassium
K
Oxygen
O
Nitrogen
N
Chlorine
Cl
Phosphorus
P
Boron
B
Helium
He
Neon
Ne
Fluorine
F
Carbon
C
Magnesium
Mg
Aluminum
Al
Silicon
Si
Nickel
Ni
Copper
Cu
Sulfur
S