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Atomic Structure of Uranium and Samarium

Uranium
Samarium
Atomic Structure of Samarium and Uranium


Atomic Properties
Atomic Number
92   
26
62   
99+
Electron Configuration
[Rn] 5f3 6d1 7s2   
[Xe] 4f6 6s2   
Crystal Structure
Orthorhombic (ORTH)   
Rhombohedral (RHO)   
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100   
RHO-Crystal-Structure-of-Samarium.jpg#100   
Atom
  
  
Number of Protons
92   
26
62   
99+
Number of Neutrons
146   
13
88   
39
Number of Electrons
92   
26
62   
99+
Radius of an Atom
  
  
Atomic Radius
156.00 pm   
29
180.00 pm   
14
Covalent Radius
196.00 pm   
14
198.00 pm   
13
Van der Waals Radius
186.00 pm   
33
229.00 pm   
20
Atomic Weight
238.03 amu   
21
150.36 amu   
99+
Atomic Volume
12.59 cm3/mol   
40
19.95 cm3/mol   
19
Adjacent Atomic Numbers
  
  
Previous Element
Protactinium
  
Promethium
  
Next Element
Neptunium
  
Europium
  
Valence Electron Potential
170.00 (-eV)   
4
44.80 (-eV)   
37
Lattice Constant
295.08 pm   
99+
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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