To share this content with an AI assistant
96Cm247
Curium
ActinidesBlock fPeriod 7solid at 20 °C
Configuration :[Rn] 5f⁷ 6d¹ 7s²
Atomic mass :247 u
3D Bohr-model representation of the Curium atom (symbol Cm, atomic number Z=96). Electron shell configuration: 2, 8, 18, 32, 25, 9, 2 electrons.
Scroll to activate 3D
Bohr model · educational
Electron configuration
Full[Rn] 5f⁷ 6d¹ 7s²
Short[Rn] 5f⁷ 6d¹ 7s²
Valence electrons10
KLMNOPQ shells
K2
L8
M18
N32
O25
P9
Q2
Electronegativity
Pauling1.28
Allen—
Mulliken (eV)—
Atomic radii
Empirical176 pm
Calculated—
Covalent169 pm
Van der Waals—
Ionic radii (Shannon-Prewitt)
+397 pm
Successive ionisation energies
I₁581 kJ/mol
Electron affinity—
Oxidation states
+3+4+5+6
Bold states = most common.