Physical and chemical properties of Fluorine

Atomic Number:9
Element Symbol:F
Element Name:Fluorine
Atomic Weight:18.9984032
Group Number:17
Group Name:Halogen
Period Number:2
Ground State Configuration:1s2 2s2 2p5
Ground State Level:2Po3/2
Standard State:Gas
Common Valences:1
Bond Length:141.8
Atomic Radius Empirical:50
Atomic Radius Calculated:42
Covalent Radius Empirical:71
Vander Waals Radius:147
Electron Affinity:328
First Ionization Energy:1681.0
Pauling Electronegativity:3.98
Sanderson Electronegativity:4.00
Allred Rochow Electronegativity:4.10
Mulliken Jaffe Electronegativity:3.91
Allen Electronegativity:4.193
Molar Volume:11.20
Refractive Index:1.000195
Melting Point:-219.62
Boiling Point:-188.12
Critical Temperature:-129
Thermal Conductivity:0.0277
Enthalpy Of Fusion:0.26 (per mol F atoms)
Enthalpy Of Vaporization:3.27 (per mole F atoms)
Enthalpy Of Atmization:79
Most Common Oxidation Numbers:-1
Color:Pale yellow
Discovered By:Henri Moissan
Discovered At:France
Discovered When:1886
Origin Of Name:From the Latin word fluere meaning to flow

Calculate the molecular weight of Fluorine or molecular weight F.

Also see the full list of chemical elements and atomic weights.

Compounds that contain Fluorine