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Chemical Properties of Samarium and 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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