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Chemical Properties of Samarium and Rhenium

Samarium
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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