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Atomic Structure of Thallium and 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
  
  

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Mercury
  
Polonium
  

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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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