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Atomic Structure of Thallium and Lutetium

Thallium
Lutetium
Atomic Structure of Lutetium and Thallium


Atomic Properties
Atomic Number
81   
35
71   
99+
Electron Configuration
[Xe] 4f14 5d10 6s2 6p1   
[Xe] 6s2 4f14 5d1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
81   
35
71   
99+
Number of Neutrons
123   
20
104   
30
Number of Electrons
81   
35
71   
99+
Radius of an Atom
  
  
Atomic Radius
170.00 pm   
22
174.00 pm   
20
Covalent Radius
145.00 pm   
39
187.00 pm   
20
Van der Waals Radius
196.00 pm   
30
221.00 pm   
22
Atomic Weight
204.38 amu   
31
174.97 amu   
40
Atomic Volume
17.20 cm3/mol   
31
17.78 cm3/mol   
30
Adjacent Atomic Numbers
  
  
Previous Element
Mercury
  
Ytterbium
  
Next Element
Lead
  
Hafnium
  
Valence Electron Potential
9.60 (-eV)   
99+
50.90 (-eV)   
26
Lattice Constant
345.66 pm   
99+
350.31 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.60   
6
1.59   
10
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