| Attribute | Value |
|---|---|
| Symbol | Ir |
| Standard state | Solid |
| Atomic mass | 192.22 u |
| Electron configuration | [Xe]6s²4f¹⁴5d⁷ |
| Oxidation states |
|
| Electronegativity (pauling scale) | 2.2 |
| Atomic radius (van der waals) | 202 pm |
| Ionization energy | 9.1 eV |
| Electron affinity | 1.565 eV |
| Melting point | 2719 K |
| Boiling point | 4701 K |
| Density | 22.42 g/cm³ |
| Atomic number | 77 |
| Group name | Transition metal |
| Discovered | 1803 year |