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Atomic Structure of Hafnium and Lutetium

Hafnium
Lutetium
Atomic Structure of Lutetium and Hafnium


Atomic Properties
Atomic Number
72   
99+
71   
99+
Electron Configuration
[Xe] 4f14 5d2 6s2   
[Xe] 6s2 4f14 5d1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
72   
99+
71   
99+
Number of Neutrons
106   
29
104   
30
Number of Electrons
72   
99+
71   
99+
Radius of an Atom
  
  
Atomic Radius
159.00 pm   
28
174.00 pm   
20
Covalent Radius
175.00 pm   
23
187.00 pm   
20
Van der Waals Radius
200.00 pm   
28
221.00 pm   
22
Atomic Weight
178.49 amu   
39
174.97 amu   
40
Atomic Volume
13.60 cm3/mol   
38
17.78 cm3/mol   
30
Adjacent Atomic Numbers
  
  
Previous Element
Lutetium
  
Ytterbium
  
Next Element
Tantalum
  
Hafnium
  
Valence Electron Potential
81.00 (-eV)   
16
50.90 (-eV)   
26
Lattice Constant
319.64 pm   
99+
350.31 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.58   
12
1.59   
10
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