| Atomic Number: | 78 |
| Element Symbol: | Pt |
| Element Name: | Platinum |
| Atomic Weight: | 195.078 |
| Group Number: | 10 |
| Group Name: | Precious metal or platinum group metal |
| Period Number: | 6 |
| Block: | d-block |
| Ground State Configuration: | [Xe] 4f14 5d9 6s |
| Ground State Level: | 3D3 |
| Standard State: | Solid |
| Bond Length: | 277.5 |
| Atomic Radius Empirical: | 135 |
| Atomic Radius Calculated: | 177 |
| Covalent Radius Empirical: | 128 |
| Vander Waals Radius: | 175 |
| Electron Affinity: | 205.3 |
| First Ionization Energy: | 870 |
| Pauling Electronegativity: | 2.28 |
| Allred Rochow Electronegativity: | 1.44 |
| Density Of Solid: | 21090 |
| Molar Volume: | 9.09 |
| Velocity Of Sound: | 2680 |
| Youngs Modulus: | 168 |
| Rigidity Modulus: | 61 |
| Bulk Modulus: | 230 |
| Poissons Ratio: | 0.38 |
| Mineral Hardness: | 3.5 |
| Brinell Hardness: | 392 |
| Vickers Hardness: | 549 |
| Electrical Resistivity: | 10.6 |
| Reflectivity: | 73 |
| Melting Point: | 1768.3 |
| Boiling Point: | 3825 |
| Thermal Conductivity: | 72 |
| Coefficient Of Linear Expansion: | 8.8 |
| Enthalpy Of Fusion: | 20 |
| Enthalpy Of Vaporization: | 490 |
| Enthalpy Of Atmization: | 565 |
| Most Common Oxidation Numbers: | 4,2 |
| Color: | Greyish white |
| Classification: | Metallic |
| Discovered By: | Antonio de Ulloa |
| Discovered At: | South America |
| Discovered When: | 1735 |
| Origin Of Name: | From the Spanish word platina meaning silver |
Calculate the molecular weight of Platinum or molecular weight Pt.
Also see the full list of chemical elements and atomic weights.