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Chemical Properties of Fermium and Samarium


Chemical Properties of Samarium and Fermium


Chemical Properties

Chemical Formula
Fm   
Sm   

Isotopes
  
  

Known Isotopes
18   
21
30   
9

Electronegativity
  
  

Pauling Electronegativity
1.30   
32
1.17   
40

Allred Rochow Electronegativity
1.20   
27
1.07   
32

Electropositivity
  
  

Pauling Electropositivity
2.70   
22
2.83   
14

Ionization Energies
  
  

1st Energy Level
627.00 kJ/mol   
99+
544.50 kJ/mol   
99+

2nd Energy Level
1,225.00 kJ/mol   
99+
1,070.00 kJ/mol   
99+

3rd Energy Level
2,363.00 kJ/mol   
99+
2,260.00 kJ/mol   
99+

4th Energy Level
3,792.00 kJ/mol   
99+
3,990.00 kJ/mol   
37

Electrochemical Equivalent
3.20 g/amp-hr   
13
1.87 g/amp-hr   
34

Electron Work Function
Not Available   
2.70 eV   
99+

Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes   

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