| Property | Value |
|---|---|
| Atomic number | 9 |
| Atomic weight | 18.99840325 amu |
| Element family | Non-metals |
| Electronic configuration | 1s2 |
| Stable and very long lived isotopes | 19F: 100% |
| Previous element | Oxygen |
| Next element | Neon |
| Density | 0.001696 g/cm3 (STP) |
| Melting | -219.52 °C |
| Boiling | -188.1 °C |
| Covalent radius | 0.64 Å |
| Van der Waals radius | 1.47 Å |
| Ionic radius | 1.33 Å |
| First ionization potential | 17.422 eV |
| Electron affinity | 3.401 eV |
| Electronegativity | 3.98 |
| Discovery year | 1810 |
Fluorine is an element number 9 from non-metals family. Its symbol is F. Fluorine atomic weight is 18.99840325 amu. F stable and long lived isotopes are 19F: 100%. Fluorine electronic configuration is 1s22s22p5. Sample compounds that contain Fluorine are F2, HF, SF6, BF3, NaF, UF6.
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