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Atomic Structure of Radium and Thorium


Atomic Structure of Thorium and Radium


Atomic Properties

Atomic Number
88   
30
90   
28

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

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

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

Atom
  
  

Number of Protons
88   
30
90   
28

Number of Neutrons
138   
16
142   
15

Number of Electrons
88   
30
90   
28

Radius of an Atom
  
  

Atomic Radius
Not Available   
179.80 pm   
15

Covalent Radius
221.00 pm   
3
206.00 pm   
7

Van der Waals Radius
283.00 pm   
4
237.00 pm   
15

Atomic Weight
226.00 amu   
26
232.04 amu   
23

Atomic Volume
45.20 cm3/mol   
4
19.90 cm3/mol   
20

Adjacent Atomic Numbers
  
  

Previous Element
Francium
  
Actinium
  

Next Element
Actinium
  

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

Lattice Constant
514.80 pm   
13
508.42 pm   
14

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
Not Available   

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