Pt
Platinum
Element 78 · Transition metal · Period 6, Group 10
Solid · Discovered 1735
Atomic Properties
| Atomic Number | 78 |
| Atomic Mass | 195.08u |
| Electron Configuration | [Xe]6s1 4f14 5d9 |
| Electronegativity | 2.28Pauling |
| Atomic Radius | 209pm |
| Ionization Energy | 9eV |
| Electron Affinity | 2.128eV |
| Oxidation States | +4, +2 |
Physical Properties
| Standard State | Solid |
| Melting Point | 2041.55K |
| Boiling Point | 4098K |
| Density | 21.46g/cm³ |
| Group Block | Transition metal |
| Year Discovered | 1735 |