Thola izingxenye
Khetha kuze kube yizinto ezi-4 ukuze ulinganise izakhiwo zabo ngakwesokudla.
Ra
Radium
#88 · I-Alkali Earth Metal
| I-Mass | 226.02541 u |
| Ubukhulu | 5.5 g/cm³ |
| Ukuncibilika | 973.0 K |
| Ukubhoboza | 2010.0 K |
| Electronegativity | 0.9 |
| I-Ionization Energy | 509.3 kJ/mol |
| I-Atom Radius | 221.0 pm |
| I-block | s-block |
| Isifunda (RT) | Iqinile |
| Ukuhlela | [Rn] 7s2 |