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Chemical Properties of Actinium and Samarium

Actinium
Samarium
Chemical Properties of Samarium and Actinium


Chemical Properties
Chemical Formula
Ac   
Sm   
Isotopes
  
  
Known Isotopes
29   
10
30   
9
Electronegativity
  
  
Pauling Electronegativity
1.10   
99+
1.17   
40
Allred Rochow Electronegativity
1.00   
36
1.07   
32
Electropositivity
  
  
Pauling Electropositivity
2.90   
10
2.83   
14
Ionization Energies
  
  
1st Energy Level
499.00 kJ/mol   
99+
544.50 kJ/mol   
99+
2nd Energy Level
1,170.00 kJ/mol   
99+
1,070.00 kJ/mol   
99+
3rd Energy Level
1,900.00 kJ/mol   
99+
2,260.00 kJ/mol   
99+
4th Energy Level
4,700.00 kJ/mol   
23
3,990.00 kJ/mol   
37
Electrochemical Equivalent
2.82 g/amp-hr   
18
1.87 g/amp-hr   
34
Electron Work Function
Not Available   
2.70 eV   
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes   
Atomic >>
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Actinide Metals

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