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Atomic Structure of Samarium and Francium

Samarium
Francium
Atomic Structure of Francium and Samarium


Atomic Properties
Atomic Number
62   
99+
87   
31
Electron Configuration
[Xe] 4f6 6s2   
[Rn] 7s1   
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+
87   
31
Number of Neutrons
88   
39
136   
17
Number of Electrons
62   
99+
87   
31
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
Not Available   
Covalent Radius
198.00 pm   
13
260.00 pm   
1
Van der Waals Radius
229.00 pm   
20
348.00 pm   
1
Atomic Weight
150.36 amu   
99+
223.00 amu   
27
Atomic Volume
19.95 cm3/mol   
19
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
Promethium
  
Polonium
  
Next Element
Europium
  
Radium
  
Valence Electron Potential
44.80 (-eV)   
37
8.00 (-eV)   
99+
Lattice Constant
362.10 pm   
33
Not Available   
Lattice Angles
π/2, π/2, 2 π/3   
NA   
Lattice C/A Ratio
Not Available   
Not Available   
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