Kala saar Qaybaha
Dooro ilaa 4 qaybaha si aad u barbardhigo astaamahooda dhinac ka dhinac.
Pa
Protactinium
#91 · Aqoonsiga
| Cirro | 231.03588 u |
| Cidhiidhi | 15.37 g/cm³ |
| Ku shub | 1841.0 K |
| Ku shub | 4300.0 K |
| Electronegativity | 1.5 |
| Istaraatiijiyad | 568.0 kJ/mol |
| Awooda | 163.0 pm |
| Blok | f-block |
| Gobol (RT) | Cidhiidhi |
| _Fiirso | [Rn] 5f2 6d1 7s2 |