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Atomic Structure of Hafnium and Praseodymium

Hafnium
Praseodymium
Atomic Structure of Praseodymium and Hafnium


Atomic Properties
Atomic Number
72   
99+
59   
99+
Electron Configuration
[Xe] 4f14 5d2 6s2   
[Xe] 4f3 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Praseodymium.jpg#100   
Atom
  
  
Number of Protons
72   
99+
59   
99+
Number of Neutrons
106   
29
82   
99+
Number of Electrons
72   
99+
59   
99+
Radius of an Atom
  
  
Atomic Radius
159.00 pm   
28
182.00 pm   
11
Covalent Radius
175.00 pm   
23
203.00 pm   
9
Van der Waals Radius
200.00 pm   
28
239.00 pm   
14
Atomic Weight
178.49 amu   
39
140.91 amu   
99+
Atomic Volume
13.60 cm3/mol   
38
20.80 cm3/mol   
15
Adjacent Atomic Numbers
  
  
Previous Element
Lutetium
  
Cerium
  
Next Element
Tantalum
  
Neodymium
  
Valence Electron Potential
81.00 (-eV)   
16
42.64 (-eV)   
99+
Lattice Constant
319.64 pm   
99+
367.25 pm   
29
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.58   
12
1.61   
4
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