Oganesson (Og)
Oganesson (Og) is element 118. Atomic mass 294, configuration [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶. Properties, isotopes, oxidation states, uses and history, with an interactive 3D atom model.
Key facts
| Atomic number | 118 |
|---|---|
| Symbol | Og |
| Standard atomic weight | 294 |
| Group | 18 |
| Period | 7 |
| Electron configuration | [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶ |
| Valence electrons | 8 |
| Common oxidation states | 0 |
| Common ions | No common ions |
| Electron affinity | ~5.403 kJ/mol |
| Melting point | ~52°C |
| Boiling point | ~177°C |
Common uses
- Research only
Where it matters
- Relativistic Effects (Predicted to be solid, not gas)
Hazards
- Radioactive
History
| Discovered | 2002 |
|---|---|
| Discovered by | JINR (Russia) & LLNL (USA) |
| Name | Yuri Oganessian |