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10
Ne
20.180
Neon
Noble gases · Group 18 · Period 2
Atomic properties
| Atomic number | 10 |
|---|---|
| Symbol | Ne |
| Standard atomic weight | 20.180 |
| Classification | Noble gases |
| Group | 18 |
| Period | 2 |
| Block | p-block |
| Electron configuration | [He] 2s2 2p6 |
| Electronegativity (Pauling) | — |
| Common oxidation states | 0 |
Physical properties
| Phase at 20 °C | Gas |
|---|---|
| Density | 0.0008999 g/cm³ |
| Melting point | -248.59 °C |
| Boiling point | -246.05 °C |
| Discovered | 1898 |
| CAS number | — |