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Chemical Properties of Samarium and Technetium

Samarium
Technetium
Chemical Properties of Technetium and Samarium


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