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Atomic Structure of Thorium and Fermium


Atomic Structure of Fermium and Thorium


Atomic Properties

Atomic Number
90   
28
100   
18

Electron Configuration
[Rn] 6d2 7s2   
[Rn] 5f12 7s2   

Crystal Structure
Face Centered Cubic (FCC)   
Not Known   

Crystal Lattice
FCC-Crystal-Structure-of-Thorium.jpg#100   
Unknown-Crystal-Structure-of-Fermium.jpg#100   

Atom
  
  

Number of Protons
90   
28
100   
18

Number of Neutrons
142   
15
157   
7

Number of Electrons
90   
28
100   
18

Radius of an Atom
  
  

Atomic Radius
179.80 pm   
15
Not Available   

Covalent Radius
206.00 pm   
7
Not Available   

Van der Waals Radius
237.00 pm   
15
245.00 pm   
9

Atomic Weight
232.04 amu   
23
257.00 amu   
15

Atomic Volume
19.90 cm3/mol   
20
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Actinium
  

Next Element

Valence Electron Potential
59.30 (-eV)   
23
Not Available   

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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