Cl
Cl
halogenOS
15
16
17
18
2
7
N
8
O
9
F
Features
fluorine · 18.998
10
Ne
3
15
P
16
S
17
Cl
Community
chlorine · 35.45
18
Ar
4
33
As
34
Se
35
Br
Devices
bromine · 79.904
36
Kr
5
51
Sb
52
Te
53
I
Sources
iodine · 126.90
54
Xe
