9
18.998 u
F
Fluorine
Halogen
Atomic Structure
Physical State
Group
17
Period
2
Block
p
Electron Configuration
[He] 2s² 2p⁵
Physical Properties
Atomic Mass:
18.998 u
Electronegativity:
3.98
Atomic Radius:
135 pm
Ionization Energy:
17.423 eV
Density:
0.001696 g/cm³
Melting Point:
53.53 K
Boiling Point:
85.03 K
Historical Information
Discovered By:
André-Marie Ampère
Year Discovered:
1810