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Atomic Structure of Thorium and Technetium

Thorium
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
Protactinium
  
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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