Studied by 20 people
Hydrogen
H
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
Chromium
Cr
Maganese
Mn
Iron
Fe
Cobalt
Co
Nickel
Ni
Copper
Cu
Zinc
Zn
Arsenic
As
Bromine
Br
Lead
Pb
Krypton
Kr
Zirconium
Zr
Silver
Ag
Tin
Sn
Iodine
I
Xerion
Xe
Cesium
Cs
Barium
Ba
Tungesten
W
Platinum
Pt
Gold
Au
Mercury
Hg
Bismuth
Bi
Radon
Rn
Uranium
U
Note 
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