gasser
N
kvælstof
Al
aluminium
Bor
Calcium
20
hydrogen
H
O
ilt
In
indium
C
Carbon
Vanadium
23
Oxygen
O
Cl
Clor
Sn
tin
P
phosphor
Ruthenium
44
radium
Ra
Kr
krypton
Sb
antimon
Br
brom
Holmium
67
dubnium
Db
Xe
Tl
thallium
Cl
clor
Thulium
69
meitnerium
Mt