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Atomic Structure of Technetium and Francium


Atomic Structure of Francium and Technetium


Atomic Properties

Atomic Number
43   
99+
87   
31

Electron Configuration
[Kr] 4d5 5s2   
[Rn] 7s1   

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+
87   
31

Number of Neutrons
55   
99+
136   
17

Number of Electrons
43   
99+
87   
31

Radius of an Atom
  
  

Atomic Radius
136.00 pm   
99+
Not Available   

Covalent Radius
147.00 pm   
37
260.00 pm   
1

Van der Waals Radius
200.00 pm   
28
348.00 pm   
1

Atomic Weight
98.00 amu   
99+
223.00 amu   
27

Atomic Volume
8.50 cm3/mol   
99+
Not Available   

Adjacent Atomic Numbers
  
  

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Molybdenum
  
Polonium
  

Next Element
Ruthenium
  
Radium
  

Valence Electron Potential
180.00 (-eV)   
3
8.00 (-eV)   
99+

Lattice Constant
273.50 pm   
99+
Not Available   

Lattice Angles
π/2, π/2, 2 π/3   
NA   

Lattice C/A Ratio
1.60   
5
Not Available   

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