argon
Ar
bromine
Br
carbon
C
chlorine
Cl
fluorine
F
helium
He
hydrogen
H
iodine
I
krypton
Kr
neon
Ne
nitrogen
N
oxygen
O
phosphorus
P
silicon
Si
sulfur
S
xenon
Xe
aluminium
Al
barium
Ba
calcium
Ca
chrome
Cr
copper
Cu
gold
Au
iron
Fe
lead
Pb
lithium
Li
manganese
Mn
mercury
Hg
nickel
Ni
platinum
Pt
potassium
K
radium
Ra
silver
Ag
sodium
Na
tin
Sn
tungsten
W
zinc
Zn