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Atomic Structure of Technetium and Manganese

Technetium
Manganese
Atomic Structure of Manganese and Technetium


Atomic Properties
Atomic Number
43   
99+
25   
99+
Electron Configuration
[Kr] 4d5 5s2   
[Ar] 3d5 4s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
43   
99+
25   
99+
Number of Neutrons
55   
99+
30   
99+
Number of Electrons
43   
99+
25   
99+
Radius of an Atom
  
  
Atomic Radius
136.00 pm   
99+
127.00 pm   
99+
Covalent Radius
147.00 pm   
37
139.00 pm   
99+
Van der Waals Radius
200.00 pm   
28
200.00 pm   
28
Atomic Weight
98.00 amu   
99+
54.94 amu   
99+
Atomic Volume
8.50 cm3/mol   
99+
1.39 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Molybdenum
  
Chromium
  
Next Element
Ruthenium
  
Iron
  
Valence Electron Potential
180.00 (-eV)   
3
220.00 (-eV)   
2
Lattice Constant
273.50 pm   
99+
891.25 pm   
1
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.60   
5
Not Available   
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