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Chemical Properties of Rhenium and Samarium


Chemical Properties of Samarium and Rhenium


Chemical Properties

Chemical Formula
Re   
Sm   

Isotopes
  
  

Known Isotopes
33   
6
30   
9

Electronegativity
  
  

Pauling Electronegativity
1.90   
11
1.17   
40

Allred Rochow Electronegativity
1.46   
15
1.07   
32

Allen Electronegativity
1.60   
21
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.10   
99+
2.83   
14

Ionization Energies
  
  

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

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

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

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

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

Electron Work Function
4.96 eV   
7
2.70 eV   
99+

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

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