| Ruthenium | |
| Elemental State | Ru |
| Electron Configuration | 1s22s22p63s23p63d104s24p65s14d7 |
| First Ionization Potential | 7.361 eV |
| Electron Affinity | 1.05 eV (calculated value) |
| Z* | |
| Pauling Electronegativity | 2.2 |
| Covalent Radius | 1.26 Å |
| Metallic Radius | 1.34 Å |
| Ionic Radius | 0.82 Å Ru3+ coordination number
= 6
0.760 Å Ru4+ coordination number = 6 0.705 Å Ru5+ coordination number = 6 |
| van der Waal's Radius | |
| Melting Point | 2334 oC |
| Boiling Point | 4140 oC |
| Density | 12.41 g/cm3 |
| Other Properties | |