Oganesson (Og): Properties, Uses and Facts in 3D
Oganesson is element 118 on the periodic table, a noble gas, so it is a nonmetal. At room temperature it is expected to be a solid (too few atoms have ever been made to check). Open it in the 3D Periodic Table to spin its tile, see its electron shells and read its story.
Explore in 3DOganesson quick facts
| Atomic number | 118 |
|---|---|
| Symbol | Og |
| Atomic mass | 294 |
| Category | Noble Gas |
| Group and period | Group 18, period 7 |
| Block | p-block |
| State at room temperature | Solid (expected) |
| Electron configuration | [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶ |
| Electrons per shell | 2, 8, 18, 32, 32, 18, 8 |
| Discovered | 2002, Oganessian |
What is oganesson used for?
- Scientific research only
- No practical applications
- Nuclear physics
Interesting facts about oganesson
- The heaviest element discovered so far, closing period 7
- Named after Yuri Oganessian. The only living person with an element named after them (as of 2026)
- Despite being in the noble gas group, predictions suggest oganesson might be a solid or reactive element due to relativistic effects
Oganesson was discovered in 2002 by Oganessian in Russia.
Where oganesson sits on the periodic table
Oganesson is in group 18, period 7. Tap any element to open its page.
Other noble gass
Oganesson questions
What is the atomic number of oganesson?
Oganesson has atomic number 118, so every oganesson atom has 118 protons in its nucleus. Its symbol is Og and its atomic mass is 294.
Is oganesson a metal?
Oganesson is a nonmetal. On the periodic table it is grouped as a noble gas, found in group 18, period 7.
What is the electron configuration of oganesson?
The electron configuration of oganesson is [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶. Its electrons sit in 7 shells: 2, 8, 18, 32, 32, 18, 8.
What is oganesson used for?
Oganesson is used for scientific research only, no practical applications and nuclear physics.
Who discovered oganesson?
Oganesson was discovered in 2002 by Oganessian in Russia.
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