Fluorine Element Properties, Halogen Group, Periodic Table of the Elements
Fluorine
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Fluorine Element Properties |
 | | General |
| Name | Fluorine |
| Symbol | F |
| Number | 9 |
| Group Number | 17 |
| Group | Halogen |
| Block | p |
| Density | 0.001696 g/cm3 |
| Atomic Weight | 18.998403 g/mol |
| Atomic Volume | 17.1 cm3/mol |
| Discover | 1886 |
|
| States |
| State | Gas |
| Melting Point | 53.53 K |
| Boiling Point | 85.03 K |
| Triple Point | Nil |
| Critical Point | 144.13 K |
| Heat of Fusion | 0.510 kJ/mol |
| Heat of Vaporization | 6.62 kJ/mol |
|
| Energies |
| First Ionization Energy | 1681 kJ/mole |
| Second Ionization Energy | 3374.1 kJ/mole |
| Third Ionization Energy | 6050.3 kJ/mole |
| Electronegativity | 3.98 |
| Electron Affinity | 328 kJ/mole |
| Specific Heat | 0.82 J/gK |
| Heat Atomization | 79 kJ/mole atoms |
|
| Oxidation and Electrons |
| Shells | 2,7 |
| Electron Configuration | 1s2 2s2 2p5 |
| Minimum Oxidation Number | -1 |
| Maximum Oxidation Number | 0 |
| Minimum Common Oxidation Number | -1 |
| Maximum Common Oxidation Number | 0 |
|
| Appearance and Characteristics |
| Crystal Structure | cubic |
| Characteristics | diatomic(F2), corrosive |
| Color | colorless |
| Uses | fluorocarbons, toothpaste |
| Hardness | mohs |
| Toxicity | Yes |
|
| Reactions |
| Reaction with Air | None |
| Reaction with 6M HCl | vigorous, =>HF, OF2, ClF3 |
| Reaction with 15M HNO3 | None |
| Reaction with 6M NaOH | vigorous, =>O2, NaF |
|
| Other Forms |
| Number of Isotopes | 1 |
| Hydride | HF |
| Oxide | OF2 |
| Chloride | ClF ClF3 ClF5 |
|
| Radius |
| Atomic Radius | 72 pm |
| Ionic Radius (1+ ion) | Nil |
| Ionic Radius (1- ion) | 119 pm |
| Ionic Radius (2+ ion) | Nil |
| Ionic Radius (2- ion) | Nil |
| Ionic Radius (3+ ion) | Nil |
|
| Conductivity |
| Thermal Conductivity | 0.03 J/m-sec-deg |
| Electrical Conductivity | 0 1/mohm-cm |
| Polarizability | 0.634 A3 |
|
| Abundance |
| Source | Fluorite (misc) |
| Relation Abundance Solar System | 2.926 log |
| Abundance Earth's Crust | 2.8 log |
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