| Element | Francium | Symbol | Fr |
| Atomic Number | 87 | Molar Mass | 223 gmol-1 |
| Electron Configuration | [Rn]7s1 | Normal State | solid metal |
| Density @STP | 1 g cm-3 | Melting Point | 27oC |
| Boiling Point | 677oC | Stable Isotopes | none |
| Atomic Radius | 270 pm | Ionic Radius | 180 (1+) pm |
| Electronegativity (Pauling) | 0.7 | Ionization Energy (1st) | 380 kJ mol-1 |
| Ionization Energy (2nd) | 2100 kJ mol-1 | Ionization Energy (3rd) | 3100 kJ mol-1 |
| Molar Heat Capacity | J K-1mol-1 | Standard Molar Entropy | J K-1mol-1 |
| Enthalpy of Fusion | kJ mol-1 | Enthalpy of Vapourization | kJ mol-1 |