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Atomic Structure of Lutetium and Technetium

Lutetium
Technetium
Atomic Structure of Technetium and Lutetium


Atomic Properties
Atomic Number
71   
99+
43   
99+
Electron Configuration
[Xe] 6s2 4f14 5d1   
[Kr] 4d5 5s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Technetium.jpg#100   
Atom
  
  
Number of Protons
71   
99+
43   
99+
Number of Neutrons
104   
30
55   
99+
Number of Electrons
71   
99+
43   
99+
Radius of an Atom
  
  
Atomic Radius
174.00 pm   
20
136.00 pm   
99+
Covalent Radius
187.00 pm   
20
147.00 pm   
37
Van der Waals Radius
221.00 pm   
22
200.00 pm   
28
Atomic Weight
174.97 amu   
40
98.00 amu   
99+
Atomic Volume
17.78 cm3/mol   
30
8.50 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Ytterbium
  
Molybdenum
  
Next Element
Hafnium
  
Ruthenium
  
Valence Electron Potential
50.90 (-eV)   
26
180.00 (-eV)   
3
Lattice Constant
350.31 pm   
99+
273.50 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.59   
10
1.60   
5
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