94Pu244

Plutonium

ActinidesBlock fPeriod 7solid at 20 °C
Configuration :[Rn] 5f⁶ 7s²
Atomic mass :244 u
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Modèle de Bohr · pédagogique

Electron configuration

Full[Rn] 5f⁶ 7s²
Short[Rn] 5f⁶ 7s²
Valence electrons8
KLMNOPQ shells
K2
L8
M18
N32
O24
P8
Q2

Electronegativity

Pauling1.28
Allen
Mulliken (eV)

Atomic radii

Empirical175 pm
Calculated
Covalent187 pm
Van der Waals
Ionic radii (Shannon-Prewitt)
+486 pm

Successive ionisation energies

I₁584.7 kJ/mol
Electron affinity

Oxidation states

+2+3+4+5+6+7+8
Bold states = most common.
Period 7Block fFamily Actinides
Sources : NIST Atomic Weights & Isotopic Compositions, IUPAC Recommendations, CODATA. Methodology