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Chemical Properties of Samarium and Neodymium

Samarium
Neodymium
Chemical Properties of Neodymium and Samarium


Chemical Properties
Chemical Formula
Sm   
Nd   
Isotopes
  
  
Known Isotopes
30   
9
30   
9
Electronegativity
  
  
Pauling Electronegativity
1.17   
40
1.14   
99+
Allred Rochow Electronegativity
1.07   
32
1.07   
32
Electropositivity
  
  
Pauling Electropositivity
2.83   
14
2.86   
13
Ionization Energies
  
  
1st Energy Level
544.50 kJ/mol   
99+
533.10 kJ/mol   
99+
2nd Energy Level
1,070.00 kJ/mol   
99+
1,040.00 kJ/mol   
99+
3rd Energy Level
2,260.00 kJ/mol   
99+
2,130.00 kJ/mol   
99+
4th Energy Level
3,990.00 kJ/mol   
37
3,900.00 kJ/mol   
99+
Electrochemical Equivalent
1.87 g/amp-hr   
34
1.79 g/amp-hr   
37
Electron Work Function
2.70 eV   
99+
3.20 eV   
34
Other Chemical Properties
Ionization, Radioactive Isotopes   
Chemical Stability, Corrosion, Flammable, Ionization   
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