Kala saar Qaybaha
Dooro ilaa 4 qaybaha si aad u barbardhigo astaamahooda dhinac ka dhinac.
Ra
Radium
#88 · Alkaline Earth Metal
| Cirro | 226.02541 u |
| Cidhiidhi | 5.5 g/cm³ |
| Ku shub | 973.0 K |
| Ku shub | 2010.0 K |
| Electronegativity | 0.9 |
| Istaraatiijiyad | 509.3 kJ/mol |
| Awooda | 221.0 pm |
| Blok | s-block |
| Gobol (RT) | Cidhiidhi |
| _Fiirso | [Rn] 7s2 |