F
Fluorine
Z 9 18.998 g/molHalogen
Nucleus
9 Protons
10 Neutrons
9 Electrons (7 Valence)
Shell distribution: K2 • L7 • M0 • N0 • O0 • P0 • Q0
Electron Configuration
Energy
7p
6d
5f
7s
6p
5d
4f
6s
5p
4d
5s
4p
3d
4s
3p
3s
2p
2s
1s
[He]2s22p5
Oxidation States
CommonRare
0
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Radii
Empirical
50 pm0.5 Å
Calculated
42 pm0.42 Å
Covalent
57±3 pm0.57±0.03 Å
Van der Waals
135 pm1.35 Å
IonicF-
133 pm1.33 Å
Crystal Structure
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Monoclinic
Pearson symbol
mS8
Space group
C2/c No. 15