Pa
Protactinium
Izinto 91 · 231.03588 u
Iprotaktinium yenye yezinto eziqhelekileyo ezibiza kakhulu ezifumaneka ngokuqhelekileyo.
Iimpawu Zobuchopho
| Ii-atom | 231.03588 u |
| Uxinano | 15.37 g/cm³ |
| Incopho yokubila: | 1841.0 K |
| Incopho yokubila: | 4300.0 K |
| Ukubonakala | I-silvery metallic, i-gloss ekhanyayo |
| I-State at Room Temp | I-Solid |
Iimpawu zekhemikhali
| Electronegativity | 1.5 (I-Polygon) |
| I-Ionization Energy | 568.0 kJ/mol |
| Electronegativity: | 53.03 kJ/mol |
| Iindawo zokuthambisa | +3, +4, +5 |
Iimpahla zephetshana elichazayo:
| Uqwalaselo lwe Electron | [Rn] 5f2 6d1 7s2 |
| Atomic radius: | 163.0 pm |
| I-Van der Waals Radius | 243.0 pm |
Ukufumana kwakhona
| Ifunyenwe Ngu | Kasimir Fajans, Oswald Helmuth Gohring |
| Unyaka Wophando | 1913 |
| Indawo | Karlsruhe, Germany |
| Igama Elilandelayo | I-Greek 'protos' ne 'actinium' kuthetha umzali we-actinium |
I-About Protactinium
Iprotactinium yi-actinide eqinileyo, emnyama-emnyama esebenza nge-radiation. Ivelisa i-actinium-227 ngokufa. I-actinium inamandla amakhulu okusebenza nge-radiation, ibiza malunga ne-$280,000 ngegram.
Iinkqubo
Ukukhangela kwesayensi, ngokukodwa igeochronology (umhla wokungena kweoyile).
Inyathelo 1:
Iprotaktinium ibiza malunga ne-$280,000 ngegram, iyenza ibe yenye yezinto ezibiza kakhulu ezifumaneka ngokuqhelekileyo.
I-Isotopes
| Inani le-Mass | Uninzi | Ixesha eliphakathi | Iqinile |
| 231 | 1.0% | 32,760 years | Akukho nanye |
Uqwalaselo lwe Electron
[Rn] 5f2 6d1 7s2