Thola izingxenye
Khetha kuze kube yizinto ezi-4 ukuze ulinganise izakhiwo zabo ngakwesokudla.
Fr
Francium
#87 · I-Alkali metal
| I-Mass | 223.01973 u |
| Ubukhulu | 1.87 g/cm³ |
| Ukuncibilika | 300.0 K |
| Ukubhoboza | 950.0 K |
| Electronegativity | 0.7 |
| I-Ionization Energy | 380.0 kJ/mol |
| I-Atom Radius | 260.0 pm |
| I-block | s-block |
| Isifunda (RT) | Iqinile |
| Ukuhlela | [Rn] 7s1 |