118Og294
Oganesson
Unknown properties · element 118 · group 18, period 7
Quick facts
| Symbol | Og |
|---|---|
| Atomic number | 118 |
| Relative atomic mass | 294 |
| Category | Unknown properties |
| Position | group 18, period 7 |
| State at 20 °C | Unknown (too few atoms have been made) |
| Melting point | — |
| Boiling point | — |
| Density | — |
| Electronegativity | — |
| Electron configuration | [Rn] 5f14 6d10 7s2 7p6 |
About Oganesson
Oganesson has the symbol Og and atomic number 118, which means every oganesson atom has 118 protons in its nucleus and, in a neutral atom, 118 electrons. At room temperature it is unknown (too few atoms have been made).
Only a few atoms of this element have ever been made, in particle accelerators, so most of its properties are predicted rather than measured.
Explore it
See where oganesson sits, and drag the temperature slider to watch it melt and boil, on the interactive periodic table. Practise with quizzes on OmniEx.