Elements / 118
118Og[294]
Oganesson
Properties unknown · p-block · ring Q · spoke 18
Oganesson is element 118, a properties unknown. It sits on ring Q (period 7) on spoke 18, the noble gases. Follow that spoke toward the center and out again to find its chemical relatives.
Properties
| Density | Not measured | Terrain → |
|---|---|---|
| Melting point | Not measured | Terrain → |
| Boiling point | Not measured | Terrain → |
| Electronegativity | Not measured | Terrain → |
| First ionization energy | Not measured | Terrain → |
| Atomic weight | 294 uThe heaviest of 118 | Terrain → |
| Crustal abundance | Not measured | Terrain → |
| Discovered | 2002 | Terrain → |
Values from open reference data; see sources. "Terrain" opens that property as a 3D landscape across the whole spiral.
Two things you might not know
- Only three (possibly four) nuclei of its one known isotope seen, half-life 0.7 ms. Predicted to be a solid semiconductor.
- Honors a nuclear physicist; one of only two elements named after a living person at naming. Formally named 28 November 2016.
Checked against en.wikipedia.org, en.wikipedia.org.
Spoke 18: Noble gases
Ring Q (period 7)
Play with Oganesson
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.