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Atomic Structure of Californium and Thorium


Atomic Structure of Thorium and Californium


Atomic Properties

Atomic Number
98   
20
90   
28

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

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

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

Atom
  
  

Number of Protons
98   
20
90   
28

Number of Neutrons
153   
9
142   
15

Number of Electrons
98   
20
90   
28

Radius of an Atom
  
  

Atomic Radius
186.00 pm   
9
179.80 pm   
15

Covalent Radius
Not Available   
206.00 pm   
7

Van der Waals Radius
Not Available   
237.00 pm   
15

Atomic Weight
251.00 amu   
17
232.04 amu   
23

Atomic Volume
Not Available   
19.90 cm3/mol   
20

Adjacent Atomic Numbers
  
  

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Actinium
  

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

Lattice Constant
338.00 pm   
99+
508.42 pm   
14

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

Lattice C/A Ratio
Not Available   
Not Available   

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