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Atomic Structure of Thorium and Technetium

Thorium
Technetium
Atomic Structure of Technetium and Thorium


Atomic
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  
16
55  
99+
Number of Electrons
90  
28
43  
99+
Radius of an Atom
  
  
Atomic Radius
179.80 pm  
17
136.00 pm  
99+
Covalent Radius
206.00 pm  
7
147.00 pm  
39
Van der Waals Radius
237.00 pm  
19
200.00 pm  
35
Atomic Weight
232.04 amu  
23
98.00 amu  
99+
Atomic Volume
19.90 cm3/mol  
32
8.50 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Actinium
  
Molybdenum
  
Next Element
Protactinium
  
Ruthenium
  
Valence Electron Potential
59.30 (-eV)  
24
180.00 (-eV)  
3
Lattice Constant
508.42 pm  
16
273.50 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.10  
99+
1.60  
21
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