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Atomic Structure of Holmium and Technetium

Holmium
Technetium
Atomic Structure of Technetium and Holmium


Atomic Properties
Atomic Number
67   
99+
43   
99+
Electron Configuration
[Xe] 4f11 6s2   
[Kr] 4d5 5s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Holmium.jpg#100   
HCP-Crystal-Structure-of-Technetium.jpg#100   
Atom
  
  
Number of Protons
67   
99+
43   
99+
Number of Neutrons
98   
34
55   
99+
Number of Electrons
67   
99+
43   
99+
Radius of an Atom
  
  
Atomic Radius
176.00 pm   
18
136.00 pm   
99+
Covalent Radius
192.00 pm   
17
147.00 pm   
37
Van der Waals Radius
216.00 pm   
24
200.00 pm   
28
Atomic Weight
164.93 amu   
99+
98.00 amu   
99+
Atomic Volume
18.70 cm3/mol   
24
8.50 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Dysprosium
  
Molybdenum
  
Next Element
Erbium
  
Ruthenium
  
Valence Electron Potential
47.90 (-eV)   
31
180.00 (-eV)   
3
Lattice Constant
357.73 pm   
38
273.50 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.57   
17
1.60   
5
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