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Atomic Structure of Thorium and Francium


Atomic Structure of Francium and Thorium


Atomic Properties

Atomic Number
90   
28
87   
31

Electron Configuration
[Rn] 6d2 7s2   
[Rn] 7s1   

Crystal Structure
Face Centered Cubic (FCC)   
Body Centered Cubic (BCC)   

Crystal Lattice
FCC-Crystal-Structure-of-Thorium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
90   
28
87   
31

Number of Neutrons
142   
15
136   
17

Number of Electrons
90   
28
87   
31

Radius of an Atom
  
  

Atomic Radius
179.80 pm   
15
Not Available   

Covalent Radius
206.00 pm   
7
260.00 pm   
1

Van der Waals Radius
237.00 pm   
15
348.00 pm   
1

Atomic Weight
232.04 amu   
23
223.00 amu   
27

Atomic Volume
19.90 cm3/mol   
20
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Actinium
  
Polonium
  

Next Element
Radium
  

Valence Electron Potential
59.30 (-eV)   
23
8.00 (-eV)   
99+

Lattice Constant
508.42 pm   
14
Not Available   

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

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