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Mercury
Hg
Silicon
Si
Copper
Cu
Gold

Au
Bromine
Br
Nickel
Ni
Carbon
C
Calcium
Ca
Iron
Fe
Lithium
Li
Sodium
Na
Lead
Pb
Argon
Ar
Iodine
I
Aluminum
Al
Neon
Ne
Boron
B
Beryillium
Be
Phosphorus
P
Helium
He
Sulfur
S
Chlorine
Cl
Potassium
K
Fluorine
F
Magnesium
Mg
Zinc
Zn
Oxygen
O
Silver
Ag
Hydrogen
H
Nitrogen
N
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