Elements / 111
111Rg[282]
Roentgenium
Properties unknown · d-block · ring Q · spoke 11
Roentgenium is element 111, a properties unknown. It sits on ring Q (period 7) on spoke 11. 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 | 282 u8th heaviest of 118 | Terrain → |
| Crustal abundance | Not measured | Terrain → |
| Discovered | 1994 | 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
- GSI saw three nuclei in December 1994, then three more atoms in 2002. Predicted density: around 22-24 g/cm3.
- Honors the physicist who discovered X-rays. First made at GSI in Germany on December 8, 1994.
Checked against en.wikipedia.org.
Spoke 11
Ring Q (period 7)
Play with Roentgenium
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.