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Atomic Structure of Gadolinium and Terbium

Gadolinium
Terbium
Atomic Structure of Terbium and Gadolinium


Atomic Properties
Atomic Number
64   
99+
65   
99+
Electron Configuration
[Xe] 4f7 5d1 6s2   
[Xe] 4f9 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Gadolinium.jpg#100   
HCP-Crystal-Structure-of-Terbium.jpg#100   
Atom
  
  
Number of Protons
64   
99+
65   
99+
Number of Neutrons
93   
37
94   
36
Number of Electrons
64   
99+
65   
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
177.00 pm   
17
Covalent Radius
196.00 pm   
14
194.00 pm   
16
Van der Waals Radius
237.00 pm   
15
221.00 pm   
22
Atomic Weight
47.87 amu   
99+
158.93 amu   
99+
Atomic Volume
19.90 cm3/mol   
20
19.20 cm3/mol   
22
Adjacent Atomic Numbers
  
  
Previous Element
Europium
  
Gadolinium
  
Next Element
Terbium
  
Dysprosium
  
Valence Electron Potential
46.10 (-eV)   
34
46.80 (-eV)   
33
Lattice Constant
363.60 pm   
32
360.10 pm   
36
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.59   
9
1.58   
13
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