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Atomic Structure of Hafnium and Niobium

Hafnium
Niobium
Atomic Structure of Niobium and Hafnium


Atomic Properties
Atomic Number
72   
99+
41   
99+
Electron Configuration
[Xe] 4f14 5d2 6s2   
[Kr] 4d4 5s1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
72   
99+
41   
99+
Number of Neutrons
106   
29
52   
99+
Number of Electrons
72   
99+
41   
99+
Radius of an Atom
  
  
Atomic Radius
159.00 pm   
28
146.00 pm   
35
Covalent Radius
175.00 pm   
23
164.00 pm   
28
Van der Waals Radius
200.00 pm   
28
200.00 pm   
28
Atomic Weight
178.49 amu   
39
92.91 amu   
99+
Atomic Volume
13.60 cm3/mol   
38
10.87 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
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Lutetium
  
Zirconium
  
Next Element
Tantalum
  
Molybdenum
  
Valence Electron Potential
81.00 (-eV)   
16
104.00 (-eV)   
8
Lattice Constant
319.64 pm   
99+
330.04 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.58   
12
Not Available   
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