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Atomic Structure of Lutetium and Lanthanum

Lutetium
Lanthanum
Atomic Structure of Lanthanum and Lutetium


Atomic Properties
Atomic Number
71   
99+
57   
99+
Electron Configuration
[Xe] 6s2 4f14 5d1   
[Xe] 5d2 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
DHCP-Crystal-Structure-of-Lanthanum.jpg#100   
Atom
  
  
Number of Protons
71   
99+
57   
99+
Number of Neutrons
104   
30
82   
99+
Number of Electrons
71   
99+
57   
99+
Radius of an Atom
  
  
Atomic Radius
174.00 pm   
20
187.00 pm   
8
Covalent Radius
187.00 pm   
20
207.00 pm   
6
Van der Waals Radius
221.00 pm   
22
240.00 pm   
13
Atomic Weight
174.97 amu   
40
138.91 amu   
99+
Atomic Volume
17.78 cm3/mol   
30
20.73 cm3/mol   
16
Adjacent Atomic Numbers
  
  
Previous Element
Ytterbium
  
Barium
  
Next Element
Hafnium
  
Cerium
  
Valence Electron Potential
50.90 (-eV)   
26
40.71 (-eV)   
99+
Lattice Constant
350.31 pm   
99+
377.20 pm   
28
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.59   
10
1.62   
2
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