Fluorine
| Basic Information | Crystal Structure | Isotope | Facts | Related Links |
| Symbol: | F |
| Atomic Number: | 9 |
| Atomic weight: | 18.998403u |
| Melting Point: | 53.48K |
| Boiling Point: | 84.95K |
| Number of Protons/Electrons: | 9 |
| Number of Neutrons: | 10 |
| Classification: | Halogen |
| Crystal Structure: | Cubic |
| Density | 0.0001696g/mL |
| Color: | Greenish |
| Bonding radius: | 0.72A |
| Atomic radius: | 0.57A |
| Ionization Potential: | 17.422V |
| Electronegativity: | 3.98 |
| Heat of vaporization: | 3.2698kJ/mol |
| Heat of fusion: | 0.2552kJ/mol |
| Specific heat: | 0.82J/gK |
| Electron configuration: | 1s22s22p5 |
Crystal Structure
| Isotope | Half Life |
| F18 | 1.8 hours |
| F19 | Stable |
| Date of Discovery: | 1886 |
| Discoverer: | Joseph Henri Moissan |
| Uses: | Refrigerants |
| Obtained From: | mineral fluorite |