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3D Bohr-model representation of the Osmium atom (symbol Os, atomic number Z=76). Electron shell configuration: 2, 8, 18, 32, 14, 2 electrons.
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Bohr model · educational
Electron configuration
Full1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d⁶ 6s²
Short[Xe] 4f¹⁴ 5d⁶ 6s²
Valence electrons8
KLMNOPQ shells
K2
L8
M18
N32
O14
P2
Electronegativity
Pauling2.2
Allen—
Mulliken (eV)—
Atomic radii
Empirical130 pm
Calculated185 pm
Covalent144 pm
Van der Waals—
Ionic radii (Shannon-Prewitt)
+463 pm
Successive ionisation energies
I₁840 kJ/mol
I₂1600 kJ/mol
Electron affinity106.1 kJ/mol
Oxidation states
-4-2-10+1+2+3+4+5+6+7+8
Bold states = most common.