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Atomic Structure of Hafnium and Europium

Hafnium
Europium
Atomic Structure of Europium and Hafnium


Atomic Properties
Atomic Number
72   
99+
63   
99+
Electron Configuration
[Xe] 4f14 5d2 6s2   
[Xe] 4f7 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+
63   
99+
Number of Neutrons
106   
29
89   
38
Number of Electrons
72   
99+
63   
99+
Radius of an Atom
  
  
Atomic Radius
159.00 pm   
28
180.00 pm   
14
Covalent Radius
175.00 pm   
23
198.00 pm   
13
Van der Waals Radius
200.00 pm   
28
233.00 pm   
18
Atomic Weight
178.49 amu   
39
151.96 amu   
99+
Atomic Volume
13.60 cm3/mol   
38
28.90 cm3/mol   
8
Adjacent Atomic Numbers
  
  
Previous Element
Lutetium
  
Samarium
  
Next Element
Tantalum
  
Gadolinium
  
Valence Electron Potential
81.00 (-eV)   
16
45.60 (-eV)   
35
Lattice Constant
319.64 pm   
99+
458.10 pm   
17
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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