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Atomic Structure of Terbium and Lanthanum

Terbium
Lanthanum
Atomic Structure of Lanthanum and Terbium


Atomic Properties
Atomic Number
65   
99+
57   
99+
Electron Configuration
[Xe] 4f9 6s2   
[Xe] 5d2 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Terbium.jpg#100   
DHCP-Crystal-Structure-of-Lanthanum.jpg#100   
Atom
  
  
Number of Protons
65   
99+
57   
99+
Number of Neutrons
94   
36
82   
99+
Number of Electrons
65   
99+
57   
99+
Radius of an Atom
  
  
Atomic Radius
177.00 pm   
17
187.00 pm   
8
Covalent Radius
194.00 pm   
16
207.00 pm   
6
Van der Waals Radius
221.00 pm   
22
240.00 pm   
13
Atomic Weight
158.93 amu   
99+
138.91 amu   
99+
Atomic Volume
19.20 cm3/mol   
22
20.73 cm3/mol   
16
Adjacent Atomic Numbers
  
  
Previous Element
Gadolinium
  
Barium
  
Next Element
Dysprosium
  
Cerium
  
Valence Electron Potential
46.80 (-eV)   
33
40.71 (-eV)   
99+
Lattice Constant
360.10 pm   
36
377.20 pm   
28
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.58   
13
1.62   
2
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