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Atomic Structure of Praseodymium and Thorium

Praseodymium
Thorium
Atomic Structure of Thorium and Praseodymium


Atomic Properties
Atomic Number
59   
99+
90   
28
Electron Configuration
[Xe] 4f3 6s2   
[Rn] 6d2 7s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Praseodymium.jpg#100   
FCC-Crystal-Structure-of-Thorium.jpg#100   
Atom
  
  
Number of Protons
59   
99+
90   
28
Number of Neutrons
82   
99+
142   
15
Number of Electrons
59   
99+
90   
28
Radius of an Atom
  
  
Atomic Radius
182.00 pm   
11
179.80 pm   
15
Covalent Radius
203.00 pm   
9
206.00 pm   
7
Van der Waals Radius
239.00 pm   
14
237.00 pm   
15
Atomic Weight
140.91 amu   
99+
232.04 amu   
23
Atomic Volume
20.80 cm3/mol   
15
19.90 cm3/mol   
20
Adjacent Atomic Numbers
  
  
Previous Element
Cerium
  
Actinium
  
Next Element
Neodymium
  
Protactinium
  
Valence Electron Potential
42.64 (-eV)   
99+
59.30 (-eV)   
23
Lattice Constant
367.25 pm   
29
508.42 pm   
14
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.61   
4
Not Available   
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