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118
Og
[294]
Oganesson
Noble gases · Group 18 · Period 7
Atomic properties
| Atomic number | 118 |
|---|---|
| Symbol | Og |
| Standard atomic weight | [294] |
| Classification | Noble gases |
| Group | 18 |
| Period | 7 |
| Block | p-block |
| Electron configuration | [Rn] 5f14 6d10 7s2 7p6 |
| Electronegativity (Pauling) | — |
| Common oxidation states | 0 |
Physical properties
| Phase at 20 °C | Solid |
|---|---|
| Density | 5.0 g/cm³ |
| Melting point | — |
| Boiling point | — |
| Discovered | 2002 |
| CAS number | — |