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Atomic Structure of Technetium and Thorium

Technetium
Thorium
Atomic Structure of Thorium and Technetium


Atomic Properties
Atomic Number
43   
99+
90   
28
Electron Configuration
[Kr] 4d5 5s2   
[Rn] 6d2 7s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100   
FCC-Crystal-Structure-of-Thorium.jpg#100   
Atom
  
  
Number of Protons
43   
99+
90   
28
Number of Neutrons
55   
99+
142   
15
Number of Electrons
43   
99+
90   
28
Radius of an Atom
  
  
Atomic Radius
136.00 pm   
99+
179.80 pm   
15
Covalent Radius
147.00 pm   
37
206.00 pm   
7
Van der Waals Radius
200.00 pm   
28
237.00 pm   
15
Atomic Weight
98.00 amu   
99+
232.04 amu   
23
Atomic Volume
8.50 cm3/mol   
99+
19.90 cm3/mol   
20
Adjacent Atomic Numbers
  
  
Previous Element
Molybdenum
  
Actinium
  
Next Element
Ruthenium
  
Protactinium
  
Valence Electron Potential
180.00 (-eV)   
3
59.30 (-eV)   
23
Lattice Constant
273.50 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
1.60   
5
Not Available   
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