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Chemical Properties of Neodymium and Tantalum

Neodymium
Tantalum
Chemical Properties of Tantalum and Neodymium


Chemical Properties
Chemical Formula
Nd   
Ta   
Isotopes
  
  
Known Isotopes
30   
9
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.14   
99+
1.50   
27
Allred Rochow Electronegativity
1.07   
32
1.33   
22
Allen Electronegativity
Not Available   
1.34   
33
Electropositivity
  
  
Pauling Electropositivity
2.86   
13
2.50   
27
Ionization Energies
  
  
1st Energy Level
533.10 kJ/mol   
99+
761.00 kJ/mol   
18
2nd Energy Level
1,040.00 kJ/mol   
99+
1,500.00 kJ/mol   
40
3rd Energy Level
2,130.00 kJ/mol   
99+
Not Available   
4th Energy Level
3,900.00 kJ/mol   
99+
Not Available   
Electrochemical Equivalent
1.79 g/amp-hr   
37
1.35 g/amp-hr   
99+
Electron Work Function
3.20 eV   
34
4.25 eV   
21
Other Chemical Properties
Chemical Stability, Corrosion, Flammable, Ionization   
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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