aluminum
Al
argon
Ar
arsenic
As
barium
Ba
boron
B
calcium
Ca
carbon
C
chlorine
Cl
copper
Cu
gold
Au
helium
He
hydrogen
H
iodine
I
iron
Fe
krypton
Kr
lead
Pb
magnesium
Mg
mercury
Hg
neon
Ne
nickel
Ni
Nitrogen
N
oxygen
O
phosphorus
P
potassium
K
radon
Rn
silicon
Si
silver
Ag
sodium
Na
sulfur
S
tin
Sn
tungsten
W
uranium
U
zinc
Zn
zirconium
Zr