103Lr266

Lawrencium

ActinidesBlock fPeriod 7solid at 20 °C
Configuration :[Rn] 5f¹⁴ 7s² 7p¹
Atomic mass :266 u
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Modèle de Bohr · pédagogique

Electron configuration

Full[Rn] 5f¹⁴ 7s² 7p¹
Short[Rn] 5f¹⁴ 7s² 7p¹
Valence electrons3
KLMNOPQ shells
K2
L8
M18
N32
O32
P8
Q3

Electronegativity

Pauling1.3
Allen
Mulliken (eV)

Atomic radii

Empirical
Calculated
Covalent
Van der Waals

Successive ionisation energies

I₁478.6 kJ/mol
Electron affinity

Oxidation states

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