| Group | ||||
|---|---|---|---|---|
| 16 | 17 | 18 | ||
| 2 |
9
F
Fluorine
[He] 2s2 2p5
|
|||
| Period | 3 |
16
S
Sulfur
[Ne] 3s2 3p4
|
17
Cl
Chlorine
[Ne] 3s2 3p5
Name origin:
the Greek 'chloros', meaning greenish yellow
Atomic weight (amu):
35.45
Specific heat capacity (J/gK):
0.479
Density (g/cm3):
0.003214
Melting point (K):
171.6
Boiling point (K):
239.11
Electronegativity (Pauling):
3.16
Abundance (mg/kg):
145.0
|
18
Ar
Argon
[Ne] 3s2 3p6
|
| 4 |
35
Br
Bromine
[Ar] 4s2 3d10 4p5
|
|||
Tip: Hover over an adjacent element to compare its electron configuration to that of the central element.