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Hydrogen
1
Helium
He
Lithium
Li
Beryllium
Be
Boron
B
Carbon
C
Nitrogen
N
Oxygen
O
Fluorine
F
Neon
Ne
Sodium
Na
Magnesium
Mg
Aluminum
Al
Silicon
Si
Phosphorus
P
Sulfur
S
Chlorine
Cl
Argon
Ar
Potassium
K
Calcium
Ca
Scrandium
Sc
Titanium
Ti
Vanadium
V
Chromium
Cr
Iron
Fe
Co
Ni
Cu
Zinc
Zn
Ga
As
Se
Br
Kr
Rb
Nb
Rh
Ag
Cd
In
Sn
Sb
Xe
Cs
Ba
Ce
Sm
Eu
Tb
Ho
Er
Tm
Lu
Hf
Re
Os
Ir
Pt
Au
Hg
Ti
Pb
Bi
Po
At
Rn
Ra