Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Francium | |
| Electron Configuration | 2,8,18,32,18,8,1 |
| Electron Configuration | [Rn] 7s1 |
| Electronegativity | 0.7 |
| Enthalpy of Fusion | n/a kJ mol-1 |
| Enthalpy of Vaporisation | n/a kJ mol-1 |
| Heat Capacity | ? 15 J mol-1 K-1 |
| Thermal Conductivity | ? W m-1 K-1 |
| Thermal Expansion | ? μm m-1 K-1 |
| Magnetic ordering | No data |
| Electrical resistivity | 3? Ω m |
| Atomic Radii |
|
| Atomic Radius
|
270 pm |
| Bohr Radius
|
0 pm |
| Covalent Radius
|
0 pm |
| Van der Waals
|
0 pm |
| Oxidation States |
|
| Main
|
Fr+1 |
| Other
|
|
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
400 |
| M+ - M2+ |
2100 |
| M2+ - M3+ |
3100 |
| M3+ - M4+ |
4100 |
| M4+ - M5+ |
5700 |
| M5+ - M6+ |
6900 |
| M6+ - M7+ |
8100 |
| M7+ - M8+ |
12300 |
| M8+ - M9+ |
12800 |
| M9+ - M10+ |
29300 |