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Atomic Structure of Hafnium and Francium

Hafnium
Francium
Atomic Structure of Francium and Hafnium


Atomic Properties
Atomic Number
72   
99+
87   
31
Electron Configuration
[Xe] 4f14 5d2 6s2   
[Rn] 7s1   
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+
87   
31
Number of Neutrons
106   
29
136   
17
Number of Electrons
72   
99+
87   
31
Radius of an Atom
  
  
Atomic Radius
159.00 pm   
28
Not Available   
Covalent Radius
175.00 pm   
23
260.00 pm   
1
Van der Waals Radius
200.00 pm   
28
348.00 pm   
1
Atomic Weight
178.49 amu   
39
223.00 amu   
27
Atomic Volume
13.60 cm3/mol   
38
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
Lutetium
  
Polonium
  
Next Element
Tantalum
  
Radium
  
Valence Electron Potential
81.00 (-eV)   
16
8.00 (-eV)   
99+
Lattice Constant
319.64 pm   
99+
Not Available   
Lattice Angles
π/2, π/2, 2 π/3   
NA   
Lattice C/A Ratio
1.58   
12
Not Available   
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