Db
Dubnium
Chikamu 105 · 268.126 u
Transition Metal
d-block
Chikamu 7
_Group 5
_Kukanganisa: at RT
Radioactive
t½ 1.2 days
Synthetic
Wikipedia →
Dubnium chemishonga yakaongororwa chete nekushandisa mashoma atoms panguva imwe.
Maitiro ekushandisa
| Atomic radius: | 268.126 u |
| Kuomarara | 29.3 g/cm³ |
| Kuoneka | Metalic (yakafungidzirwa) |
| State at Room Temp | _Kukanganisa: |
Chemical zvinhu
| Oxygen | +5 |
Atomic Properties
| Kuisa Kugadzirisa | [Rn] 5f14 6d3 7s2 |
Discovery
| Yakawanikwa ne | Joint Institute for Nuclear Research / Lawrence Berkeley National Laboratory |
| Kuonekwa kwegore | 1968 |
| _Panzvimbo: | Dubna, Russia / Berkeley, USA |
| Akapihwa zita mushure me | Kubva kuDubna, Russia |
Nezve Dubnium
Dubnium inonziwo transactinide, uye zvidzidzo zvakaita sezvakaitwa neNiobium neTantalium zvinoratidza kuti inoita sezvainoita niobium, asi ine zvinhu zvisingaite.
Mashandisiro & Maapplication
No zvakajairika maapplication. Scientific research chete.
Nhoroondo yemitambo
Chemical zvidzidzo padubnium kushandisa chete mashoma atoms panguva imwe, asi vatsvakurudzi vakawana kuchinja kunoshamisa kubva kufungidzirwa ukama.
Isotopes
| Mamwe marudzi ezvinyorwa | Kuwanda | Half-Life | _Kuchengeta |
| 262 | - | 34 seconds | Hapana |
| 268 | - | 1.2 days | Hapana |
Kuisa Kugadzirisa
[Rn] 5f14 6d3 7s2