Ruthenium
| Basic Information | Crystal Structure | Isotope | Facts | Related Links |
| Symbol: | Ru |
| Atomic Number: | 44 |
| Atomic weight: | 101.07u |
| Melting Point: | 2523K |
| Boiling Point: | 4423K |
| Number of Protons/Electrons: | 44 |
| Number of Neutrons: | 57 |
| Classification: | Transition Metal |
| Crystal Structure: | Hexagonal |
| Density at 293 K: | 12.2g/mL |
| Color: | Silvery |
| Bonding radius: | 1.25A |
| Atomic radius: | 1.68A |
| Ionization Potential: | 7.37V |
| Electronegativity: | 2.2 |
| Heat of vaporization: | 595kJ/mol |
| Heat of fusion: | 24kJ/mol |
| Specific heat: | 0.238J/gK |
| Electron configuration: | [Kr]4d75s1 |
Crystal Structure
| Isotope | Half Life |
| Ru96 | Stable |
| Ru97 | 2.89 days |
| Ru98 | Stable |
| Ru99 | Stable |
| Ru100 | Stable |
| Ru101 | Stable |
| Ru102 | Stable |
| Ru103 | 39.27 days |
| Ru104 | Stable |
| Ru105 | 4.44 hours |
| Ru106 | 1.02 years |
| Date of Discovery: | 1844 |
| Discoverer: | Karl Klaus |
| Uses: | Platinum alloys |
| Obtained From: | Pentlandite, pyroxinite |