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Atomic Structure of Hafnium and Polonium

Hafnium
Polonium
Atomic Structure of Polonium and Hafnium


Atomic Properties
Atomic Number
72   
99+
84   
32
Electron Configuration
[Xe] 4f14 5d2 6s2   
[Xe] 4f14 5d10 6s2 6p4   
Crystal Structure
Hexagonal Close Packed (HCP)   
Monoclinic (MON)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
MON-Crystal-Structure-of-Polonium.jpg#100   
Atom
  
  
Number of Protons
72   
99+
84   
32
Number of Neutrons
106   
29
125   
19
Number of Electrons
72   
99+
84   
32
Radius of an Atom
  
  
Atomic Radius
159.00 pm   
28
168.00 pm   
23
Covalent Radius
175.00 pm   
23
140.00 pm   
99+
Van der Waals Radius
200.00 pm   
28
197.00 pm   
29
Atomic Weight
178.49 amu   
39
209.00 amu   
28
Atomic Volume
13.60 cm3/mol   
38
22.23 cm3/mol   
13
Adjacent Atomic Numbers
  
  
Previous Element
Lutetium
  
Bismuth
  
Next Element
Tantalum
  
Francium
  
Valence Electron Potential
81.00 (-eV)   
16
Not Available   
Lattice Constant
319.64 pm   
99+
335.90 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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