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Atomic Structure of Manganese and Technetium

Manganese
Technetium
Atomic Structure of Technetium and Manganese


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