Db
I-Dubnium
Ingxenye 105 · 268.126 u
I-Transition Metal
d-block
Isikhathi 7
Iqembu 5
Iqinile ku-RT
I-Radioactive
t½ 1.2 days
Isingeniso
I-Wikipedia →
I-chemistry ye-dubnium ifundeke ngokusebenzisa kuphela ama-atomi ambalwa ngasikhathi sinye.
Izici Zobuchopho
| I-Atom Mass | 268.126 u |
| Ubukhulu | 29.3 g/cm³ |
| Ukubonakala | I-Metallic (ilindelekile) |
| Isimo ku-Room Temp | Iqinile |
Izici ze-chemical
| I-Oxidation States | +5 |
Izici ze-Atom
| I-electron | [Rn] 5f14 6d3 7s2 |
Ukuqapha
| Itholakele ngu | Joint Institute for Nuclear Research / Lawrence Berkeley National Laboratory |
| Unyaka wokuqamba | 1968 |
| Indawo | Dubna, Russia / Berkeley, USA |
| Ibizwa nge | Ibizwa ngokuthi yi-Dubna, Russia |
Malunga I-Dubnium
I-Dubnium iyingxenye ye-transactinide esebenza nge-radiation. Izifundo ezincane zibonisa ukuthi isebenza njenge-niobium ne-tantalum, ngezinto ezithile ezingalindelekile.
Izisebenziso
No izicelo ezisebenzayo. Ucwaningo lwesayensi kuphela.
Iqiniso elijabulisayo
Izifundo zekhemikhali ze-dubnium zisebenzisa kuphela ama-atomi ambalwa ngesikhathi, kodwa abacwaningi bathola ukuguquka okuphawulekayo kusuka ekuziphatha okulindelekile.
Isibonisi
| Inani le-mass | Ubukhulu | Isikhathi esingu-half-life | Iqinile |
| 262 | - | 34 seconds | Akukho |
| 268 | - | 1.2 days | Akukho |
I-electron
[Rn] 5f14 6d3 7s2