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Atomic Structure of Samarium and Europium

Samarium
Europium
Atomic Structure of Europium and Samarium


Atomic Properties
Atomic Number
62   
99+
63   
99+
Electron Configuration
[Xe] 4f6 6s2   
[Xe] 4f7 6s2   
Crystal Structure
Rhombohedral (RHO)   
Body Centered Cubic (BCC)   
Crystal Lattice
RHO-Crystal-Structure-of-Samarium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
62   
99+
63   
99+
Number of Neutrons
88   
39
89   
38
Number of Electrons
62   
99+
63   
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
180.00 pm   
14
Covalent Radius
198.00 pm   
13
198.00 pm   
13
Van der Waals Radius
229.00 pm   
20
233.00 pm   
18
Atomic Weight
150.36 amu   
99+
151.96 amu   
99+
Atomic Volume
19.95 cm3/mol   
19
28.90 cm3/mol   
8
Adjacent Atomic Numbers
  
  
Previous Element
Promethium
  
Samarium
  
Next Element
Europium
  
Gadolinium
  
Valence Electron Potential
44.80 (-eV)   
37
45.60 (-eV)   
35
Lattice Constant
362.10 pm   
33
458.10 pm   
17
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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