Quick Facts
| Property | Value |
|---|---|
| Symbol | Og |
| Atomic Number | 118 |
| Atomic Mass | [294] u |
| Category | Noble Gas |
| Period | 7 |
| Group | 18 |
| Block | p |
| Electron Configuration | [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶ |
History and Discovery
Discovered by: JINR and LLNL collaboration Year of Discovery: 2002 (confirmed 2006) Location: Dubna, Russia
Etymology
Named after Yuri Oganessian, Russian nuclear physicist who led the discovery of superheavy elements.
Properties
- Heaviest element on the periodic table
- Second element named after a living person
- Predicted to be a solid at room temperature (unlike other noble gases)
- May be reactive (unlike other noble gases)
Interesting Facts
- Heaviest known element
- Named after Yuri Oganessian while he was still alive
- May be a solid at room temperature—unique for noble gases
- Relativistic effects make its chemistry very unusual
- Only 5 atoms have ever been produced
- Completes the 7th period of the periodic table