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Protactinium
Zosankha 91 · 231.03588 u
Protactinium ndi imodzi mwa zinthu zosadziwika bwino kwambiri komanso zotsika mtengo kwambiri zomwe zimapezeka m'chilengedwe.
Zochita za Fiziki
| Mafuta | 231.03588 u |
| Kuwala | 15.37 g/cm³ |
| Kutentha | 1841.0 K |
| Kutentha | 4300.0 K |
| Kuoneka | Silvery metallic, yobiriwira luster |
| State at Room Temp | M'gululi |
Makhalidwe a Chemical
| Electronegativity | 1.5 (Pauling) |
| 1st Ionization Energy | 568.0 kJ/mol |
| Electron Affinity | 53.03 kJ/mol |
| Oxygen | +3, +4, +5 |
Zosankha
| Kusintha kwa ma electron | [Rn] 5f2 6d1 7s2 |
| Atomic radius | 163.0 pm |
| Kuwala kwa Van der Waals | 243.0 pm |
Kupeza
| Kupezeka ndi | Kasimir Fajans, Oswald Helmuth Gohring |
| Kuzindikira chaka | 1913 |
| Malo | Karlsruhe, Germany |
| Analimbikitsidwa ndi | Chigiriki 'protos' ndi 'actinium' kutanthauza m'bale wa actinium |
Za ine Protactinium
Protactinium ndi wolimba, silvery-wobiriwira radioactive actinide.It amatulutsa actinium-227 mwa kugwa.Izi ndi zonse zowopsa ndi kwambiri radioactive, mtengo pafupifupi $ 280,000 pa gramu.
Kugwiritsa ntchito & Maphunziro
Kufufuza kwa sayansi, makamaka geochronology (kuyambira kwa ma sediments a nyanja).
Fun Facts
Mtengo wake ndi $280,000 pa gramu, zomwe zikutanthauza kuti ndi imodzi mwazinthu zotsika mtengo kwambiri zomwe zimapezeka m'chilengedwe.
Isotopes
| Kukula kwa maselo | Kuchuluka | Half-Life | Wolimba |
| 231 | 1.0% | 32,760 years | Si |
Kusintha kwa ma electron
[Rn] 5f2 6d1 7s2