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Atomic Structure of Thorium and Technetium


Atomic Structure of Technetium and Thorium


Atomic Properties

Atomic Number
90   
28
43   
99+

Electron Configuration
[Rn] 6d2 7s2   
[Kr] 4d5 5s2   

Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Thorium.jpg#100   
HCP-Crystal-Structure-of-Technetium.jpg#100   

Atom
  
  

Number of Protons
90   
28
43   
99+

Number of Neutrons
142   
15
55   
99+

Number of Electrons
90   
28
43   
99+

Radius of an Atom
  
  

Atomic Radius
179.80 pm   
15
136.00 pm   
99+

Covalent Radius
206.00 pm   
7
147.00 pm   
37

Van der Waals Radius
237.00 pm   
15
200.00 pm   
28

Atomic Weight
232.04 amu   
23
98.00 amu   
99+

Atomic Volume
19.90 cm3/mol   
20
8.50 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Actinium
  
Molybdenum
  

Next Element
Ruthenium
  

Valence Electron Potential
59.30 (-eV)   
23
180.00 (-eV)   
3

Lattice Constant
508.42 pm   
14
273.50 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.60   
5

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