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Atomic Structure of Technetium and Thallium

Technetium
Thallium
Atomic Structure of Thallium and Technetium


Atomic Properties
Atomic Number
43   
99+
81   
35
Electron Configuration
[Kr] 4d5 5s2   
[Xe] 4f14 5d10 6s2 6p1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
43   
99+
81   
35
Number of Neutrons
55   
99+
123   
20
Number of Electrons
43   
99+
81   
35
Radius of an Atom
  
  
Atomic Radius
136.00 pm   
99+
170.00 pm   
22
Covalent Radius
147.00 pm   
37
145.00 pm   
39
Van der Waals Radius
200.00 pm   
28
196.00 pm   
30
Atomic Weight
98.00 amu   
99+
204.38 amu   
31
Atomic Volume
8.50 cm3/mol   
99+
17.20 cm3/mol   
31
Adjacent Atomic Numbers
  
  
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Molybdenum
  
Mercury
  
Next Element
Ruthenium
  
Lead
  
Valence Electron Potential
180.00 (-eV)   
3
9.60 (-eV)   
99+
Lattice Constant
273.50 pm   
99+
345.66 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.60   
5
1.60   
6
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