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Atomic Structure of Magnesium and Technetium

Magnesium
Technetium
Atomic Structure of Technetium and Magnesium


Atomic Properties
Atomic Number
12   
99+
43   
99+
Electron Configuration
[Ne] 3s2   
[Kr] 4d5 5s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Magnesium.jpg#100   
HCP-Crystal-Structure-of-Technetium.jpg#100   
Atom
  
  
Number of Protons
12   
99+
43   
99+
Number of Neutrons
12   
99+
55   
99+
Number of Electrons
12   
99+
43   
99+
Radius of an Atom
  
  
Atomic Radius
160.00 pm   
27
136.00 pm   
99+
Covalent Radius
141.00 pm   
99+
147.00 pm   
37
Van der Waals Radius
173.00 pm   
37
200.00 pm   
28
Atomic Weight
24.31 amu   
99+
98.00 amu   
99+
Atomic Volume
13.97 cm3/mol   
37
8.50 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
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Sodium
  
Molybdenum
  
Next Element
Aluminium
  
Ruthenium
  
Valence Electron Potential
40.00 (-eV)   
99+
180.00 (-eV)   
3
Lattice Constant
320.94 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
Not Available   
1.60   
5
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