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
Manganese
Mn
Iron
Fe
Cobalt
Co
Nickel
Ni
Copper
Cu
Zinc
Zn
Bromine
Br
Krypton
Kr
Strontium
Sr
Silver
Ag
Tin
Sn
Antimony
Sb
Iodine
I
Xenon
Xe
Barium
Ba
Gold
Au
Mercury
Hg
Lead
Pb
Bismuth
Bi