| General |
|---|
| Name | Neon | | Symbol | Ne | | Number | 10 | | Chemical series | Noble gases | | Group / Period | 18 / 2 | | Block | p-block | | CAS registry number | 7440-01-9 |
| Physical properties |
|---|
| State | gas | | Density | 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) | | Critical point | 44.4 K, 2.76 MPa |
| Atomic properties |
|---|
| Atomic Weight | 20.1797 g/mol | | Crystal structure | cubic face centered | | Electronegativity | | | Atomic radius | | | Atomic radius (calculated) | 38 pm | | Electron configuration | [He] 2s2 2p6 | | Electrons per shell | 2, 8 | | Number of protons | 10 | | Number of neutrons | 10 |
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Sodium