| Francium | |
| Elemental State | Fr |
| Electron Configuration | 1s22s22p63s23p63d104s24p64d104f145s25p65d106s26p67s1 |
| First Ionization Potential | 4.073 eV |
| Electron Affinity | 0.46 eV (calculated) |
| Z* | |
| Pauling Electronegativity | 0.7 |
| Covalent Radius | |
| Metallic Radius | |
| Ionic Radius | |
| van der Waal's Radius | |
| Melting Point | 27 oC |
| Boiling Point | 677 oC |
| Density | |
| Other Properties | All isotopes are radioactive
223Fr half-life = 21.8 minutes |