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Atomic Structure of Technetium and Gadolinium

Technetium
Gadolinium
Atomic Structure of Gadolinium and Technetium


Atomic Properties
Atomic Number
43   
99+
64   
99+
Electron Configuration
[Kr] 4d5 5s2   
[Xe] 4f7 5d1 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100   
HCP-Crystal-Structure-of-Gadolinium.jpg#100   
Atom
  
  
Number of Protons
43   
99+
64   
99+
Number of Neutrons
55   
99+
93   
37
Number of Electrons
43   
99+
64   
99+
Radius of an Atom
  
  
Atomic Radius
136.00 pm   
99+
180.00 pm   
14
Covalent Radius
147.00 pm   
37
196.00 pm   
14
Van der Waals Radius
200.00 pm   
28
237.00 pm   
15
Atomic Weight
98.00 amu   
99+
47.87 amu   
99+
Atomic Volume
8.50 cm3/mol   
99+
19.90 cm3/mol   
20
Adjacent Atomic Numbers
  
  
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Molybdenum
  
Europium
  
Next Element
Ruthenium
  
Terbium
  
Valence Electron Potential
180.00 (-eV)   
3
46.10 (-eV)   
34
Lattice Constant
273.50 pm   
99+
363.60 pm   
32
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.60   
5
1.59   
9
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