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Atomic Structure of Hafnium and Barium

Hafnium
Barium
Atomic Structure of Barium and Hafnium


Atomic Properties
Atomic Number
72   
99+
56   
99+
Electron Configuration
[Xe] 4f14 5d2 6s2   
[Xe] 6s2   
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+
56   
99+
Number of Neutrons
106   
29
81   
99+
Number of Electrons
72   
99+
56   
99+
Radius of an Atom
  
  
Atomic Radius
159.00 pm   
28
222.00 pm   
4
Covalent Radius
175.00 pm   
23
215.00 pm   
5
Van der Waals Radius
200.00 pm   
28
268.00 pm   
6
Atomic Weight
178.49 amu   
39
137.33 amu   
99+
Atomic Volume
13.60 cm3/mol   
38
39.24 cm3/mol   
5
Adjacent Atomic Numbers
  
  
Previous Element
Lutetium
  
Cesium
  
Next Element
Tantalum
  
Lanthanum
  
Valence Electron Potential
81.00 (-eV)   
16
21.30 (-eV)   
99+
Lattice Constant
319.64 pm   
99+
502.80 pm   
15
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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