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Chemical element: Fluorine (F)
| Atomic Number: | 9 |
| Element Symbol: | F |
| Element Name: | Fluorine |
| Atomic Weight: | 18.9984032 |
| Group Number: | 17 |
| Group Name: | Halogen |
| Period Number: | 2 |
| Block: | p-block |
| 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 |
| Classification: | Non-metallic |
| 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.
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