Db
Dubnium
Qaybta 105 · 268.126 u
Midab:
d-block
Waqtiga 7
_Dhaqdhaqaaq 5
Cidhiidhi at RT
Radioactive
t½ 1.2 days
Isku dhafan
Wikipedia →
Dubnium ee kimikada waxaa lagu bartay iyadoo la isticmaalayo kaliya qaar ka mid ah atoms mar.
Eeg astaamaha
| Atomic mass | 268.126 u |
| Cidhiidhi | 29.3 g/cm³ |
| Muuqaalka | Metal (la saadaaliyay) |
| Xaaladda heerkulka qolka | Cidhiidhi |
Eegista
| Nidaamka | +5 |
_Cusub:
| Nidaamka | [Rn] 5f14 6d3 7s2 |
Dib u eegista
| La Ogaaday | Joint Institute for Nuclear Research / Lawrence Berkeley National Laboratory |
| Sannadka la helay | 1968 |
| _Meel | Dubna, Ruushka / Berkeley, Mareykanka |
| Magacaabista | Magacaabista ka dib Dubna, Russia |
_Warbixinta Dubnium
Dubnium waa isku dhafan, radioactive transactinide qayb. tijaabooyin xaddidan muujiyaan in ay u dhaqmaan si aad u badan sida niobium iyo tantalum, oo leh qaar ka mid ah astaamaha aan la filayn.
Barnaamijyada
No codsiyada dhaqameed. cilmi baarista cilmiga ah oo kaliya.
Xaqiiqo xiiso leh
Tijaabooyinka kiimikada ee dubnium waxay isticmaalaan kaliya qaar ka mid ah atoms mar kasta, haddana cilmi-baarayaashu waxay heleen kala-goysyo yaab leh oo ka yimid hab-dhaqanka la saadaaliyay.
Isotoobyo
| Tirada | Tirada | Half-Life | Xasiloon |
| 262 | - | 34 seconds | Ha |
| 268 | - | 1.2 days | Ha |
Nidaamka
[Rn] 5f14 6d3 7s2