Thola izingxenye
Khetha kuze kube yizinto ezi-4 ukuze ulinganise izakhiwo zabo ngakwesokudla.
Ac
Actinium
#89 · I-Actinide
| I-Mass | 227.02775 u |
| Ubukhulu | 10.07 g/cm³ |
| Ukuncibilika | 1323.0 K |
| Ukubhoboza | 3471.0 K |
| Electronegativity | 1.1 |
| I-Ionization Energy | 499.0 kJ/mol |
| I-Atom Radius | 195.0 pm |
| I-block | f-block |
| Isifunda (RT) | Iqinile |
| Ukuhlela | [Rn] 6d1 7s2 |