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|
Fluorine
Chemical Properties & Compounds
| Symbol | Atomic Number | Atomic Weight | Melting Point | Boiling Point | Phase | Density | Classification |
| F | 9 | 18.9984032 | -219.62 °C | -188.12 °C | Gas | 1.7 g/L | Non-Metal  |
|
|
|
| General |
| Name, symbol, number |
fluorine, F, 9 |
| Chemical series |
halogens |
| Group, period, block |
17, 2, p |
| Appearance |
Yellowish brown gas
 |
| Standard atomic weight |
18.9984032(5) g·mol−1 |
| Electron configuration |
1s2 2s2 2p5 |
| Electrons per shell |
2, 7 |
| Physical properties |
| Phase |
gas |
| Density |
(0 °C, 101.325 kPa)
1.7 g/L |
| Melting point |
53.53 K
(-219.62 °C, -363.32 °F) |
| Boiling point |
85.03 K
(-188.12 °C, -306.62 °F) |
| Critical point |
144.13 K, 5.172 MPa |
| Heat of fusion |
(F2) 0.510 kJ·mol−1 |
| Heat of vaporization |
(F2) 6.62 kJ·mol−1 |
| Heat capacity |
(25 °C) (F2)
31.304 J·mol−1·K−1 |
|
|
| Atomic properties |
| Crystal structure |
cubic |
| Oxidation states |
−1
(strongly acidic oxide) |
| Electronegativity |
3.98 (Pauling scale) |
Ionization energies
(more) |
1st: 1681.0 kJ·mol−1 |
| 2nd: 3374.2 kJ·mol−1 |
| 3rd: 6050.4 kJ·mol−1 |
| Atomic radius |
50 pm |
| Atomic radius (calc.) |
42 pm |
| Covalent radius |
71 pm
(see covalent radius of fluorine) |
| Van der Waals radius |
147 pm |
| Miscellaneous |
| Magnetic ordering |
nonmagnetic |
| Thermal conductivity |
(300 K) 27.7 m W·m−1·K−1 |
| CAS registry number |
7782-41-4 |
| Selected isotopes |
|
|
| References |
|
Fluorine Compounds
|
Source: Wikipedia article Fluorine
|
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Chemistry Quick Facts
