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Fr
Francium
#87 · Alkaline Metal
| Mafuta | 223.01973 u |
| Kuomarara | 1.87 g/cm³ |
| Kutonhora | 300.0 K |
| Kutonhora | 950.0 K |
| Electronegativity | 0.7 |
| Kutonhora | 380.0 kJ/mol |
| Atomic radius: | 260.0 pm |
| Block | s- block |
| State (RT) | _Kukanganisa: |
| Kugadzirisa | [Rn] 7s1 |