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Atomic Structure of Samarium and Radium

Samarium
Radium
Atomic Structure of Radium and Samarium


Atomic Properties
Atomic Number
62   
99+
88   
30
Electron Configuration
[Xe] 4f6 6s2   
[Rn] 7s2   
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+
88   
30
Number of Neutrons
88   
39
138   
16
Number of Electrons
62   
99+
88   
30
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
Not Available   
Covalent Radius
198.00 pm   
13
221.00 pm   
3
Van der Waals Radius
229.00 pm   
20
283.00 pm   
4
Atomic Weight
150.36 amu   
99+
226.00 amu   
26
Atomic Volume
19.95 cm3/mol   
19
45.20 cm3/mol   
4
Adjacent Atomic Numbers
  
  
Previous Element
Promethium
  
Francium
  
Next Element
Europium
  
Actinium
  
Valence Electron Potential
44.80 (-eV)   
37
20.10 (-eV)   
99+
Lattice Constant
362.10 pm   
33
514.80 pm   
13
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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