Manganèse
Block dPeriod 4Group 7solid at 20 °C
Configuration :[Ar] 3d⁵ 4s²
Atomic mass :54.938043 u
English :Manganese
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Modèle de Bohr · pédagogique
Electron configuration
Full1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s²
Short[Ar] 3d⁵ 4s²
Valence electrons7
KLMNOPQ shells
K2
L8
M13
N2
Electronegativity
Pauling1.55
Allen1.75
Mulliken (eV)—
Atomic radii
Empirical140 pm
Calculated161 pm
Covalent139 pm
Van der Waals—
Ionic radii (Shannon-Prewitt)
+283 pm
+746 pm
Successive ionisation energies
I₁717.3 kJ/mol
I₂1509 kJ/mol
I₃3248 kJ/mol
I₄4940 kJ/mol
I₅6990 kJ/mol
Electron affinity—
Oxidation states
-3-2-10+1+2+3+4+5+6+7
Bold states = most common.