Element | Platinum | Symbol | Pt |
Atomic Number | 78 | Molar Mass | 195.09 gmol-1 |
Electron Configuration | [Xe]4f145d96s1 | Normal State | solid metal |
Density @STP | 21.45 g cm-3 | Melting Point | 1768oC |
Boiling Point | 3825oC | Stable Isotopes | 190Pt, 192Pt, 194Pt, 195Pt, 196Pt, 198Pt |
Atomic Radius | 139 pm | Ionic Radius | 85 (2+) pm |
Electronegativity (Pauling) | 2.28 | Ionization Energy (1st) | 870 kJ mol-1 |
Ionization Energy (2nd) | 1791 kJ mol-1 | Ionization Energy (3rd) | 2800 kJ mol-1 |
Molar Heat Capacity | 25.9 J K-1mol-1 | Standard Molar Entropy | 41.6 J K-1mol-1 |
Enthalpy of Fusion | 19.7 kJ mol-1 | Enthalpy of Vapourization | 510.5 kJ mol-1 |