To share this content with an AI assistant
3D Bohr-model representation of the Iridium atom (symbol Ir, atomic number Z=77). Electron shell configuration: 2, 8, 18, 32, 15, 2 electrons.
Scroll to activate 3D
Bohr model · educational
Related lesson
Homogeneous catalysis
Catalysts in solution, transition-metal complexes, Wilkinson's hydrogenation.
13 minElectron configuration
Full1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d⁷ 6s²
Short[Xe] 4f¹⁴ 5d⁷ 6s²
Valence electrons9
KLMNOPQ shells
K2
L8
M18
N32
O15
P2
Electronegativity
Pauling2.2
Allen—
Mulliken (eV)—
Atomic radii
Empirical135 pm
Calculated180 pm
Covalent141 pm
Van der Waals—
Ionic radii (Shannon-Prewitt)
+462.5 pm
Successive ionisation energies
I₁880 kJ/mol
I₂1600 kJ/mol
Electron affinity151 kJ/mol
Oxidation states
-3-10+1+2+3+4+5+6+7+8+9
Bold states = most common.