60Nd144.242
Néodyme
LanthanidesBlock fPeriod 6solid at 20 °C
Configuration :[Xe] 4f⁴ 6s²
Atomic mass :144.242 u
English :Neodymium
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Modèle de Bohr · pédagogique
Electron configuration
Full[Xe] 4f⁴ 6s²
Short[Xe] 4f⁴ 6s²
Valence electrons3
KLMNOPQ shells
K2
L8
M18
N22
O8
P2
Electronegativity
Pauling1.14
Allen—
Mulliken (eV)—
Atomic radii
Empirical185 pm
Calculated206 pm
Covalent201 pm
Van der Waals—
Ionic radii (Shannon-Prewitt)
+398.3 pm
Successive ionisation energies
I₁533.1 kJ/mol
I₂1040 kJ/mol
I₃2130 kJ/mol
I₄3900 kJ/mol
Electron affinity—
Oxidation states
+2+3+4
Bold states = most common.