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Atomic Structure of Francium and Technetium

Francium
Technetium
Atomic Structure of Technetium and Francium


Atomic Properties
Atomic Number
87   
31
43   
99+
Electron Configuration
[Rn] 7s1   
[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
87   
31
43   
99+
Number of Neutrons
136   
17
55   
99+
Number of Electrons
87   
31
43   
99+
Radius of an Atom
  
  
Atomic Radius
Not Available   
136.00 pm   
99+
Covalent Radius
260.00 pm   
1
147.00 pm   
37
Van der Waals Radius
348.00 pm   
1
200.00 pm   
28
Atomic Weight
223.00 amu   
27
98.00 amu   
99+
Atomic Volume
Not Available   
8.50 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Polonium
  
Molybdenum
  
Next Element
Radium
  
Ruthenium
  
Valence Electron Potential
8.00 (-eV)   
99+
180.00 (-eV)   
3
Lattice Constant
Not Available   
273.50 pm   
99+
Lattice Angles
NA   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.60   
5
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