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Atomic Structure of Cesium and Samarium

Cesium
Samarium
Atomic Structure of Samarium and Cesium


Atomic Properties
Atomic Number
55   
99+
62   
99+
Electron Configuration
[Xe] 6s1   
[Xe] 4f6 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Rhombohedral (RHO)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
RHO-Crystal-Structure-of-Samarium.jpg#100   
Atom
  
  
Number of Protons
55   
99+
62   
99+
Number of Neutrons
78   
99+
88   
39
Number of Electrons
55   
99+
62   
99+
Radius of an Atom
  
  
Atomic Radius
265.00 pm   
1
180.00 pm   
14
Covalent Radius
244.00 pm   
2
198.00 pm   
13
Van der Waals Radius
343.00 pm   
2
229.00 pm   
20
Atomic Weight
132.91 amu   
99+
150.36 amu   
99+
Atomic Volume
71.07 cm3/mol   
1
19.95 cm3/mol   
19
Adjacent Atomic Numbers
  
  
Previous Element
Tin
  
Promethium
  
Next Element
Barium
  
Europium
  
Valence Electron Potential
8.62 (-eV)   
99+
44.80 (-eV)   
37
Lattice Constant
614.10 pm   
5
362.10 pm   
33
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
Not Available   
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