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|
| General |
| Name, symbol, number |
radon, Rn, 86 |
| Chemical series |
noble gases |
| Group, period, block |
18, 6, p |
| Appearance |
colourless |
| Standard atomic weight |
(222) g·mol−1 |
| Electron configuration |
[Xe] 4f14 5d10 6s2 6p6 |
| Electrons per shell |
2, 8, 18, 32, 18, 8 |
| Physical properties |
| Phase |
gas |
| Melting point |
202 K
(−71.15 °C, −96 °F) |
| Boiling point |
211.3 K
(−61.85 °C, −79.1 °F) |
| Critical point |
377 K, 6.28 MPa |
| Heat of fusion |
3.247 kJ·mol−1 |
| Heat of vaporization |
18.10 kJ·mol−1 |
| Specific heat capacity |
(25 °C) 20.786 J·mol−1·K−1 |
Vapor pressure
| P/Pa |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| at T/K |
110 |
121 |
134 |
152 |
176 |
211 |
|
| Atomic properties |
| Crystal structure |
cubic face centered |
| Oxidation states |
0 |
| Electronegativity |
2.2 (Pauling scale) |
| Ionization energies |
1st: 1037 kJ·mol−1 |
| Atomic radius (calc.) |
120 pm |
| Covalent radius |
145 pm |
| Miscellaneous |
| Magnetic ordering |
non-magnetic |
| Thermal conductivity |
(300 K) 3.61 m W·m−1·K−1 |
| CAS registry number |
10043-92-2 |
| Selected isotopes |
|
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| References |
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