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Chemical Properties of Europium and Tantalum

Europium
Tantalum
Chemical Properties of Tantalum and Europium


Chemical Properties
Chemical Formula
Eu   
Ta   
Isotopes
  
  
Known Isotopes
31   
8
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.20   
39
1.50   
27
Sanderson Electronegativity
1.01   
22
Not Available   
Allred Rochow Electronegativity
Not Available   
1.33   
22
Allen Electronegativity
Not Available   
1.34   
33
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.50   
27
Ionization Energies
  
  
1st Energy Level
547.10 kJ/mol   
99+
761.00 kJ/mol   
18
2nd Energy Level
1,085.00 kJ/mol   
99+
1,500.00 kJ/mol   
40
3rd Energy Level
2,404.00 kJ/mol   
99+
Not Available   
4th Energy Level
4,120.00 kJ/mol   
33
Not Available   
Electrochemical Equivalent
1.89 g/amp-hr   
33
1.35 g/amp-hr   
99+
Electron Work Function
2.50 eV   
99+
4.25 eV   
21
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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