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Atomic Structure of Terbium and Thulium

Terbium
Thulium
Atomic Structure of Thulium and Terbium


Atomic Properties
Atomic Number
65   
99+
69   
99+
Electron Configuration
[Xe] 4f9 6s2   
[Xe] 4f13 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Terbium.jpg#100   
HCP-Crystal-Structure-of-Thulium.jpg#100   
Atom
  
  
Number of Protons
65   
99+
69   
99+
Number of Neutrons
94   
36
100   
32
Number of Electrons
65   
99+
69   
99+
Radius of an Atom
  
  
Atomic Radius
177.00 pm   
17
176.00 pm   
18
Covalent Radius
194.00 pm   
16
160.00 pm   
30
Van der Waals Radius
221.00 pm   
22
Not Available   
Atomic Weight
158.93 amu   
99+
168.93 amu   
99+
Atomic Volume
19.20 cm3/mol   
22
18.10 cm3/mol   
28
Adjacent Atomic Numbers
  
  
Previous Element
Gadolinium
  
Erbium
  
Next Element
Dysprosium
  
Ytterbium
  
Valence Electron Potential
46.80 (-eV)   
33
49.70 (-eV)   
28
Lattice Constant
360.10 pm   
36
353.75 pm   
40
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.58   
13
1.57   
17
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