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Atomic Structure of Praseodymium and Beryllium

Praseodymium
Beryllium
Atomic Structure of Beryllium and Praseodymium


Atomic Properties
Atomic Number
59   
99+
4   
99+
Electron Configuration
[Xe] 4f3 6s2   
[He] 2s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Praseodymium.jpg#100   
HCP-Crystal-Structure-of-Beryllium.jpg#100   
Atom
  
  
Number of Protons
59   
99+
4   
99+
Number of Neutrons
82   
99+
5   
99+
Number of Electrons
59   
99+
4   
99+
Radius of an Atom
  
  
Atomic Radius
182.00 pm   
11
112.00 pm   
99+
Covalent Radius
203.00 pm   
9
96.00 pm   
99+
Van der Waals Radius
239.00 pm   
14
153.00 pm   
99+
Atomic Weight
140.91 amu   
99+
9.01 amu   
99+
Atomic Volume
20.80 cm3/mol   
15
5.00 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Cerium
  
Lithium
  
Next Element
Neodymium
  
Sodium
  
Valence Electron Potential
42.64 (-eV)   
99+
82.00 (-eV)   
15
Lattice Constant
367.25 pm   
29
228.58 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.61   
4
1.57   
18
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