67Ho164.930
Holmium
LanthanidesBlock fPeriod 6solid at 20 °C
Configuration :[Xe] 4f¹¹ 6s²
Atomic mass :164.930328 u
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Modèle de Bohr · pédagogique
Electron configuration
Full[Xe] 4f¹¹ 6s²
Short[Xe] 4f¹¹ 6s²
Valence electrons3
KLMNOPQ shells
K2
L8
M18
N29
O8
P2
Electronegativity
Pauling1.23
Allen—
Mulliken (eV)—
Atomic radii
Empirical175 pm
Calculated226 pm
Covalent192 pm
Van der Waals—
Ionic radii (Shannon-Prewitt)
+390.1 pm
Successive ionisation energies
I₁581 kJ/mol
I₂1140 kJ/mol
I₃2204 kJ/mol
I₄4100 kJ/mol
Electron affinity—
Oxidation states
+1+2+3
Bold states = most common.