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Atomic Structure of Thorium and Lutetium

Thorium
Lutetium
Atomic Structure of Lutetium and Thorium


Atomic Properties
Atomic Number
90   
28
71   
99+
Electron Configuration
[Rn] 6d2 7s2   
[Xe] 6s2 4f14 5d1   
Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Thorium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
90   
28
71   
99+
Number of Neutrons
142   
15
104   
30
Number of Electrons
90   
28
71   
99+
Radius of an Atom
  
  
Atomic Radius
179.80 pm   
15
174.00 pm   
20
Covalent Radius
206.00 pm   
7
187.00 pm   
20
Van der Waals Radius
237.00 pm   
15
221.00 pm   
22
Atomic Weight
232.04 amu   
23
174.97 amu   
40
Atomic Volume
19.90 cm3/mol   
20
17.78 cm3/mol   
30
Adjacent Atomic Numbers
  
  
Previous Element
Actinium
  
Ytterbium
  
Next Element
Protactinium
  
Hafnium
  
Valence Electron Potential
59.30 (-eV)   
23
50.90 (-eV)   
26
Lattice Constant
508.42 pm   
14
350.31 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.59   
10
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