Periodic table of elements

9 - Fluorine [F]

9: Fluorine - Fluorum [F]
Group: 17
Period: 2
Atomic number: 9
Atomic mass: 18.9984032
Configuration: [He] 2s22p5
Atomic radius: 42 pm
Covalent radius: 57 pm
Electron affinity: 328 eV
Ionization energy: 17.4228 eV
Electronic term: 2P3/2
Mass fraction in the earth crust: 0.00054
Mass fraction in the earth space: 0.0000004
Electronegativity: 3.98

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