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Atomic Structure of Erbium and Hafnium

Erbium
Hafnium
Atomic Structure of Hafnium and Erbium


Atomic Properties
Atomic Number
68   
99+
72   
99+
Electron Configuration
[Xe] 4f12 6s2   
[Xe] 4f14 5d2 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Erbium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
68   
99+
72   
99+
Number of Neutrons
99   
33
106   
29
Number of Electrons
68   
99+
72   
99+
Radius of an Atom
  
  
Atomic Radius
176.00 pm   
18
159.00 pm   
28
Covalent Radius
189.00 pm   
19
175.00 pm   
23
Van der Waals Radius
Not Available   
200.00 pm   
28
Atomic Weight
167.26 amu   
99+
178.49 amu   
39
Atomic Volume
18.40 cm3/mol   
25
13.60 cm3/mol   
38
Adjacent Atomic Numbers
  
  
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Holmium
  
Lutetium
  
Next Element
Thulium
  
Tantalum
  
Valence Electron Potential
49.00 (-eV)   
29
81.00 (-eV)   
16
Lattice Constant
355.88 pm   
39
319.64 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.57   
17
1.58   
12
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