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Atomic Structure of Technetium and Strontium

Technetium
Strontium
Atomic Structure of Strontium and Technetium


Atomic Properties
Atomic Number
43   
99+
38   
99+
Electron Configuration
[Kr] 4d5 5s2   
[Kr] 5s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100   
FCC-Crystal-Structure-of-Strontium.jpg#100   
Atom
  
  
Number of Protons
43   
99+
38   
99+
Number of Neutrons
55   
99+
50   
99+
Number of Electrons
43   
99+
38   
99+
Radius of an Atom
  
  
Atomic Radius
136.00 pm   
99+
215.00 pm   
5
Covalent Radius
147.00 pm   
37
195.00 pm   
15
Van der Waals Radius
200.00 pm   
28
249.00 pm   
7
Atomic Weight
98.00 amu   
99+
87.62 amu   
99+
Atomic Volume
8.50 cm3/mol   
99+
33.70 cm3/mol   
6
Adjacent Atomic Numbers
  
  
Previous Element
Molybdenum
  
Rubidium
  
Next Element
Ruthenium
  
Yttrium
  
Valence Electron Potential
180.00 (-eV)   
3
25.70 (-eV)   
99+
Lattice Constant
273.50 pm   
99+
608.49 pm   
6
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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