Re
Rhenium
Element 75 · Transition metal · Period 6, Group 7
Solid · Discovered 1925
Atomic Properties
| Atomic Number | 75 |
| Atomic Mass | 186.207u |
| Electron Configuration | [Xe]6s2 4f14 5d5 |
| Electronegativity | 1.9Pauling |
| Atomic Radius | 217pm |
| Ionization Energy | 7.88eV |
| Electron Affinity | 0.15eV |
| Oxidation States | +7, +6, +4 |
Physical Properties
| Standard State | Solid |
| Melting Point | 3459K |
| Boiling Point | 5869K |
| Density | 20.8g/cm³ |
| Group Block | Transition metal |
| Year Discovered | 1925 |