Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Ruthenium | |
| Electron Configuration | 2,8,18,15,1 |
| Electron Configuration | [Kr] 4d7 5s1 |
| Electronegativity | 2.2 |
| Enthalpy of Fusion | 23.7 kJ mol-1 |
| Enthalpy of Vaporisation | 567 kJ mol-1 |
| Heat Capacity | 24.06 J mol-1 K-1 |
| Thermal Conductivity | 117 W m-1 K-1 |
| Thermal Expansion | 6.4 μm m-1 K-1 |
| Magnetic ordering | No data |
| Electrical resistivity | 71 Ω m |
| Speed of sound | 5970 m s-1 |
| Young's modulus | 447 GPa |
| Shear modulus | 5970 GPa |
| Bulk modulus | 220 GPa |
| Poisson ratio | 0.30 |
| Mohs hardness | 6.5 |
| Brinell hardness | 2160 MPa |
| Atomic Radii |
|
| Atomic Radius
|
130 pm |
| Bohr Radius
|
178 pm |
| Covalent Radius
|
126 pm |
| Van der Waals
|
0 pm |
| Oxidation States |
|
| Main
|
Ru+3 |
| Other
|
Ru-2, Ru0, Ru+1, Ru+2, Ru+4, Ru+5, Ru+6, Ru+7, Ru+8 |
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
711 |
| M+ - M2+ |
1617 |
| M2+ - M3+ |
2747 |
| M3+ - M4+ |
4500 |
| M4+ - M5+ |
6100 |
| M5+ - M6+ |
7800 |
| M6+ - M7+ |
9600 |
| M7+ - M8+ |
11500 |
| M8+ - M9+ |
18700 |
| M9+ - M10+ |
20900 |