Atomic Radii
Atomic Radius
Bohr Radius
Covalent Radius
Van der Waals
| Platinum | |
| Electron Configuration | 2,8,18,32,17,1 |
| Electron Configuration | [Xe]] 4f14 5d9 6s1 |
| Electronegativity | 2.28 |
| Enthalpy of Fusion | 19.7 kJ mol-1 |
| Enthalpy of Vaporisation | 469 kJ mol-1 |
| Heat Capacity | 25.86 J mol-1 K-1 |
| Thermal Conductivity | 71.6 W m-1 K-1 |
| Thermal Expansion | 8.8 μm m-1 K-1 |
| Magnetic ordering | Paramagnetic |
| Electrical resistivity | 105 Ω m |
| Speed of sound | 2800 m s-1 |
| Young's modulus | 168 GPa |
| Shear modulus | 2800 GPa |
| Bulk modulus | 230 GPa |
| Poisson ratio | 0.38 |
| Mohs hardness | 3.5 |
| Vickers hardness | 549 MPa |
| Brinell hardness | 392 MPa |
| Atomic Radii |
|
| Atomic Radius
|
135 pm |
| Bohr Radius
|
177 pm |
| Covalent Radius
|
128 pm |
| Van der Waals
|
175 pm |
| Oxidation States |
|
| Main
|
Pt+4 |
| Other
|
Pt0, Pt+2, Pt+5, Pt+6 |
Ionisation Energies (kJ mol-1)  |
|
| M - M+ |
870 |
| M+ - M2+ |
1791 |
| M2+ - M3+ |
2800 |
| M3+ - M4+ |
3900 |
| M4+ - M5+ |
5300 |
| M5+ - M6+ |
7200 |
| M6+ - M7+ |
8900 |
| M7+ - M8+ |
10500 |
| M8+ - M9+ |
12300 |
| M9+ - M10+ |
14100 |