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Chemical Properties of Technetium and Samarium

Technetium
Samarium
Chemical Properties of Samarium and Technetium


Chemical Properties
Chemical Formula
Tc   
Sm   
Isotopes
  
  
Known Isotopes
18   
21
30   
9
Electronegativity
  
  
Pauling Electronegativity
1.90   
11
1.17   
40
Allred Rochow Electronegativity
1.36   
20
1.07   
32
Allen Electronegativity
1.51   
28
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.10   
99+
2.83   
14
Ionization Energies
  
  
1st Energy Level
702.00 kJ/mol   
36
544.50 kJ/mol   
99+
2nd Energy Level
1,470.00 kJ/mol   
99+
1,070.00 kJ/mol   
99+
3rd Energy Level
2,850.00 kJ/mol   
33
2,260.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,990.00 kJ/mol   
37
Electrochemical Equivalent
0.52 g/amp-hr   
99+
1.87 g/amp-hr   
34
Electron Work Function
Not Available   
2.70 eV   
99+
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes   
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