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Atomic Structure of Praseodymium and Francium

Praseodymium
Francium
Atomic Structure of Francium and Praseodymium


Atomic Properties
Atomic Number
59   
99+
87   
31
Electron Configuration
[Xe] 4f3 6s2   
[Rn] 7s1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Praseodymium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
59   
99+
87   
31
Number of Neutrons
82   
99+
136   
17
Number of Electrons
59   
99+
87   
31
Radius of an Atom
  
  
Atomic Radius
182.00 pm   
11
Not Available   
Covalent Radius
203.00 pm   
9
260.00 pm   
1
Van der Waals Radius
239.00 pm   
14
348.00 pm   
1
Atomic Weight
140.91 amu   
99+
223.00 amu   
27
Atomic Volume
20.80 cm3/mol   
15
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
Cerium
  
Polonium
  
Next Element
Neodymium
  
Radium
  
Valence Electron Potential
42.64 (-eV)   
99+
8.00 (-eV)   
99+
Lattice Constant
367.25 pm   
29
Not Available   
Lattice Angles
π/2, π/2, 2 π/3   
NA   
Lattice C/A Ratio
1.61   
4
Not Available   
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