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Atomic Structure of Rhenium and Samarium

Rhenium
Samarium
Atomic Structure of Samarium and Rhenium


Atomic Properties
Atomic Number
75   
99+
62   
99+
Electron Configuration
[Xe] 4f14 5d5 6s2   
[Xe] 4f6 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Rhombohedral (RHO)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
RHO-Crystal-Structure-of-Samarium.jpg#100   
Atom
  
  
Number of Protons
75   
40
62   
99+
Number of Neutrons
111   
26
88   
39
Number of Electrons
75   
40
62   
99+
Radius of an Atom
  
  
Atomic Radius
137.00 pm   
40
180.00 pm   
14
Covalent Radius
151.00 pm   
34
198.00 pm   
13
Van der Waals Radius
200.00 pm   
28
229.00 pm   
20
Atomic Weight
186.21 amu   
36
150.36 amu   
99+
Atomic Volume
8.85 cm3/mol   
99+
19.95 cm3/mol   
19
Adjacent Atomic Numbers
  
  
Previous Element
Tungsten
  
Promethium
  
Next Element
Osmium
  
Europium
  
Valence Electron Potential
180.00 (-eV)   
3
44.80 (-eV)   
37
Lattice Constant
276.10 pm   
99+
362.10 pm   
33
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.62   
3
Not Available   
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