Elements / 105
105Db[268]
Dubnium
Transition metal · d-block · ring Q · spoke 5
Dubnium is element 105, a transition metal. It sits on ring Q (period 7) on spoke 5. 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 | 268 u | Terrain → |
| Crustal abundance | Not measured | Terrain → |
| Discovered | 1970 | 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
- Americans wanted hahnium, for Otto Hahn; a 1994 IUPAC proposal said joliotium. In 1997 it got a town's name instead.
- Named in 1997 after the Russian town that hosts the Joint Institute for Nuclear Research (JINR).
Checked against en.wikipedia.org.
Spoke 5
Ring Q (period 7)
Play with Dubnium
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.