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Atomic Structure of Radium and Technetium


Atomic Structure of Technetium and Radium


Atomic Properties

Atomic Number
88   
30
43   
99+

Electron Configuration
[Rn] 7s2   
[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
88   
30
43   
99+

Number of Neutrons
138   
16
55   
99+

Number of Electrons
88   
30
43   
99+

Radius of an Atom
  
  

Atomic Radius
Not Available   
136.00 pm   
99+

Covalent Radius
221.00 pm   
3
147.00 pm   
37

Van der Waals Radius
283.00 pm   
4
200.00 pm   
28

Atomic Weight
226.00 amu   
26
98.00 amu   
99+

Atomic Volume
45.20 cm3/mol   
4
8.50 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Francium
  
Molybdenum
  

Next Element
Actinium
  
Ruthenium
  

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

Lattice Constant
514.80 pm   
13
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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