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Atomic Structure of Thallium and Francium

Thallium
Francium
Atomic Structure of Francium and Thallium


Atomic Properties
Atomic Number
81   
35
87   
31
Electron Configuration
[Xe] 4f14 5d10 6s2 6p1   
[Rn] 7s1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
81   
35
87   
31
Number of Neutrons
123   
20
136   
17
Number of Electrons
81   
35
87   
31
Radius of an Atom
  
  
Atomic Radius
170.00 pm   
22
Not Available   
Covalent Radius
145.00 pm   
39
260.00 pm   
1
Van der Waals Radius
196.00 pm   
30
348.00 pm   
1
Atomic Weight
204.38 amu   
31
223.00 amu   
27
Atomic Volume
17.20 cm3/mol   
31
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
Mercury
  
Polonium
  
Next Element
Lead
  
Radium
  
Valence Electron Potential
9.60 (-eV)   
99+
8.00 (-eV)   
99+
Lattice Constant
345.66 pm   
99+
Not Available   
Lattice Angles
π/2, π/2, 2 π/3   
NA   
Lattice C/A Ratio
1.60   
6
Not Available   
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