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|
Neon
Chemical Properties & Compounds
| Symbol | Atomic Number | Atomic Weight | Melting Point | Boiling Point | Phase | Density | Classification |
| Ne | 10 | 20.1797 | -248.59 °C | -246.08 °C | Gas | 0.9002 g/L | Noble Gas |
|
|
|
| General |
| Name, symbol, number |
neon, Ne, 10 |
| Chemical series |
noble gases |
| Group, period, block |
18, 2, p |
| Appearance |
colorless
 |
| Standard atomic weight |
20.1797(6) g·mol−1 |
| Electron configuration |
1s2 2s2 2p6 |
| Electrons per shell |
2, 8 |
| Physical properties |
| Phase |
gas |
| Density |
(0 °C, 101.325 kPa)
0.9002 g/L |
| Melting point |
24.56 K
(-248.59 °C, -415.46 °F) |
| Boiling point |
27.07 K
(-246.08 °C, -410.94 °F) |
| Triple point |
24.5561[4] K, 43[12] kPa |
| Critical point |
44.4 K, 2.76 MPa |
| Heat of fusion |
0.335 kJ·mol−1 |
| Heat of vaporization |
1.71 kJ·mol−1 |
| Heat capacity |
(25 °C) 20.786 J·mol−1·K−1 |
|
|
| Atomic properties |
| Crystal structure |
cubic face centered |
| Oxidation states |
no data |
Ionization energies
(more) |
1st: 2080.7 kJ·mol−1 |
| 2nd: 3952.3 kJ·mol−1 |
| 3rd: 6122 kJ·mol−1 |
| Atomic radius (calc.) |
38 pm |
| Covalent radius |
69 pm |
| Van der Waals radius |
154 pm |
| Miscellaneous |
| Magnetic ordering |
nonmagnetic |
| Thermal conductivity |
(300 K) 49.1 m W·m−1·K−1 |
| Speed of sound |
(gas, 0 °C) 435 m/s |
| CAS registry number |
7440-01-9 |
| Selected isotopes |
|
|
| References |
|
Neon Compounds
|
Source: Wikipedia article Neon
|
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Chemistry Quick Facts
