Osmium
Electron Configuration
|
General Properties
| Atomic Symbol | Os |
| Atomic Weight | 190.2 g/mol |
| Element Number | 76 |
| Standard State | Solid |
| Standard Type | Strongly Basic |
| Date of Discovery | 1804 |
| Discoverer | Tennant |
Physical Properties
| Oxidation States | 4, 2,3,6,8 |
| Boiling Point | 5300 K |
| Melting Point | 3300 K |
| Density | 22.6 g/cm³ |
| Electron Configuration | [Xe]4f14,5d6,6s2 |
| Acid/Base Properties | Acidic |
| Crystal Structure | Hexagonal |
| Electronegativity | 2.2 |
| Heat of Vaporization | 627.6 kJ/mol |
| Heat of Fusion | 29.29 kJ/mol |
| Electrical Conductivity | 12.3 10^6omg-¹cm-¹ |
| Thermal Conductivity | 87.6 Wm-¹K-¹ (at 300 K) |
| Specific Heat Capacity | 0.13 Jg-¹K-¹ (at 300 K) |
| First Ionization Potential | 8.7 |
| Atomic Volume | 8.43 cm³/mol |
| Atomic Radius | 1.35 Å |
| Covalent Radius | 1.26 Å |
| Synthetic | No |