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Atomic Structure of Technetium and Thulium

Technetium
Thulium
Atomic Structure of Thulium and Technetium


Atomic
Atomic Number
43  
99+
69  
99+
Electron Configuration
[Kr] 4d5 5s2  
[Xe] 4f13 6s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100  
HCP-Crystal-Structure-of-Thulium.jpg#100  
Atom
  
  
Number of Protons
43  
99+
69  
99+
Number of Neutrons
55  
99+
100  
33
Number of Electrons
43  
99+
69  
99+
Radius of an Atom
  
  
Atomic Radius
136.00 pm  
99+
176.00 pm  
20
Covalent Radius
147.00 pm  
39
160.00 pm  
32
Van der Waals Radius
200.00 pm  
35
227.00 pm  
26
Atomic Weight
98.00 amu  
99+
168.93 amu  
99+
Atomic Volume
8.50 cm3/mol  
99+
18.10 cm3/mol  
40
Adjacent Atomic Numbers
  
  
Previous Element
Molybdenum
  
Erbium
  
Next Element
Ruthenium
  
Ytterbium
  
Valence Electron Potential
180.00 (-eV)  
3
49.70 (-eV)  
29
Lattice Constant
273.50 pm  
99+
353.75 pm  
99+
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.60  
21
1.57  
40
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