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Chemical Properties of Samarium and Rhenium


Chemical Properties of Rhenium and Samarium


Chemical Properties

Chemical Formula
Sm   
Re   

Isotopes
  
  

Known Isotopes
30   
9
33   
6

Electronegativity
  
  

Pauling Electronegativity
1.17   
40
1.90   
11

Allred Rochow Electronegativity
1.07   
32
1.46   
15

Allen Electronegativity
Not Available   
1.60   
21

Electropositivity
  
  

Pauling Electropositivity
2.83   
14
2.10   
99+

Ionization Energies
  
  

1st Energy Level
544.50 kJ/mol   
99+
760.00 kJ/mol   
20

2nd Energy Level
1,070.00 kJ/mol   
99+
1,260.00 kJ/mol   
99+

3rd Energy Level
2,260.00 kJ/mol   
99+
2,510.00 kJ/mol   
99+

4th Energy Level
3,990.00 kJ/mol   
37
3,640.00 kJ/mol   
99+

Electrochemical Equivalent
1.87 g/amp-hr   
34
0.99 g/amp-hr   
99+

Electron Work Function
2.70 eV   
99+
4.96 eV   
7

Other Chemical Properties
Ionization, Radioactive Isotopes   
Corrosion, Ionization, Radioactive Isotopes, Solubility   

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