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#9 Fluorine - rarity BROWNIAN-MANIACS
| 1st ionization energy | 17.423 eV | 0.85% |
|---|---|---|
| appearance | Gaseous state: Pale yellowLiquid state: Bright yellowAlpha fluorine: OpaqueBeta fluorine: Transparent | 0.85% |
| atomic mass | 18.998 u | 0.85% |
| atomic number | 9 | 0.85% |
| atomic radius | 135 picometers (van der Waals radius) | 0.85% |
| boiling point | 85.03 K or -188.11 °C or -306.6 °F | 0.85% |
| cas number | 7782-41-4 | 0.85% |
| cas number of (cl2) | - | 99.15% |
| category | Nonmetals (Halogens) | 0.85% |
| crystal structure | SC (Simple cubic) | 2.54% |
| density | 1.696 g/L | 0.85% |
| electronegativity | 3.98 (Pauling scale) | 0.85% |
| electronic configuration | [He] 2s2 2p5 | 0.85% |
| electrons | 9 | 0.85% |
| electrons arrangement | 2, 7 | 0.85% |
| main isotopes | 19F | 0.85% |
| melting point | 53.48 K or -219.67 °C or -363.41 °F | 0.85% |
| neutrons | 10 | 1.69% |
| position | Group: 17, Period: 2, Block: p | 0.85% |
| rarity | BROWNIAN-MANIACS | 33.33% |
| state | Gas | 9.32% |
| sublimation point | - | 99.15% |
| symbol | F | 0.85% |
| valence electrons | 7 | 3.39% |
| who discovered | Andre-Marie Ampere in 1810 | 0.85% |
Total Rarity Score: 2267.58
Rarity: #3/354