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Atomic Structure of Samarium and Cerium

Samarium
Cerium
Atomic Structure of Cerium and Samarium


Atomic Properties
Atomic Number
62   
99+
58   
99+
Electron Configuration
[Xe] 4f6 6s2   
[Xe] 4f1 5d1 6s2   
Crystal Structure
Rhombohedral (RHO)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
RHO-Crystal-Structure-of-Samarium.jpg#100   
DHCP-Crystal-Structure-of-Cerium.jpg#100   
Atom
  
  
Number of Protons
62   
99+
58   
99+
Number of Neutrons
88   
39
82   
99+
Number of Electrons
62   
99+
58   
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
181.80 pm   
12
Covalent Radius
198.00 pm   
13
204.00 pm   
8
Van der Waals Radius
229.00 pm   
20
235.00 pm   
17
Atomic Weight
150.36 amu   
99+
140.12 amu   
99+
Atomic Volume
19.95 cm3/mol   
19
20.67 cm3/mol   
17
Adjacent Atomic Numbers
  
  
Previous Element
Promethium
  
Lanthanum
  
Next Element
Europium
  
Praseodymium
  
Valence Electron Potential
44.80 (-eV)   
37
41.78 (-eV)   
99+
Lattice Constant
362.10 pm   
33
362.00 pm   
34
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
Not Available   
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