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FluorineF Electron 1 Electron 2 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7

Fluorine is a chemical element with symbol F and atomic number 9. It is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. As the most electronegative element, it is extremely reactive:almost all other elements, including some noble gases, form compounds with fluorine.

9 Atomic Number
19  u Atomic Mass
53.63  K Melting Point
85.03  K Boiling Point
1.7  g/liter Density
0.57  Å Atomic Radius
0.57  Å Covalent Radius
3.98 Electronegativity
17.42  eV First Ionization Energy
328.16 Electron Affinity
2 Number of Shells
7 Electron Valency
2, 7 Electron Shell Occupations
0.82  J/g Specific Heat