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Atomic Structure of Thorium and Californium


Atomic Structure of Californium and Thorium


Atomic Properties

Atomic Number
90   
28
98   
20

Electron Configuration
[Rn] 6d2 7s2   
[Rn] 5f10 7s2   

Crystal Structure
Face Centered Cubic (FCC)   
Double Hexagonal Close Packed (DHCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Thorium.jpg#100   
DHCP-Crystal-Structure-of-Californium.jpg#100   

Atom
  
  

Number of Protons
90   
28
98   
20

Number of Neutrons
142   
15
153   
9

Number of Electrons
90   
28
98   
20

Radius of an Atom
  
  

Atomic Radius
179.80 pm   
15
186.00 pm   
9

Covalent Radius
206.00 pm   
7
Not Available   

Van der Waals Radius
237.00 pm   
15
Not Available   

Atomic Weight
232.04 amu   
23
251.00 amu   
17

Atomic Volume
19.90 cm3/mol   
20
Not Available   

Adjacent Atomic Numbers
  
  

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Valence Electron Potential
59.30 (-eV)   
23
44.50 (-eV)   
38

Lattice Constant
508.42 pm   
14
338.00 pm   
99+

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
Not Available   

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