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Atomic Structure of Barium and Praseodymium

Barium
Praseodymium
Atomic Structure of Praseodymium and Barium


Atomic Properties
Atomic Number
56   
99+
59   
99+
Electron Configuration
[Xe] 6s2   
[Xe] 4f3 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Praseodymium.jpg#100   
Atom
  
  
Number of Protons
56   
99+
59   
99+
Number of Neutrons
81   
99+
82   
99+
Number of Electrons
56   
99+
59   
99+
Radius of an Atom
  
  
Atomic Radius
222.00 pm   
4
182.00 pm   
11
Covalent Radius
215.00 pm   
5
203.00 pm   
9
Van der Waals Radius
268.00 pm   
6
239.00 pm   
14
Atomic Weight
137.33 amu   
99+
140.91 amu   
99+
Atomic Volume
39.24 cm3/mol   
5
20.80 cm3/mol   
15
Adjacent Atomic Numbers
  
  
Previous Element
Cesium
  
Cerium
  
Next Element
Lanthanum
  
Neodymium
  
Valence Electron Potential
21.30 (-eV)   
99+
42.64 (-eV)   
99+
Lattice Constant
502.80 pm   
15
367.25 pm   
29
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.61   
4
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