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Chemical Properties of Praseodymium and Holmium

Praseodymium
Holmium
Chemical Properties of Holmium and Praseodymium


Chemical Properties
Chemical Formula
Pr   
Ho   
Isotopes
  
  
Known Isotopes
31   
8
34   
5
Electronegativity
  
  
Pauling Electronegativity
1.13   
99+
1.23   
37
Allred Rochow Electronegativity
1.07   
32
1.10   
30
Electropositivity
  
  
Pauling Electropositivity
2.87   
12
2.77   
17
Ionization Energies
  
  
1st Energy Level
527.00 kJ/mol   
99+
581.00 kJ/mol   
99+
2nd Energy Level
1,020.00 kJ/mol   
99+
1,140.00 kJ/mol   
99+
3rd Energy Level
2,086.00 kJ/mol   
99+
2,204.00 kJ/mol   
99+
4th Energy Level
3,761.00 kJ/mol   
99+
4,100.00 kJ/mol   
34
5th Energy Level
5,551.00 kJ/mol   
29
Not Available   
Electrochemical Equivalent
1.75 g/amp-hr   
40
2.02 g/amp-hr   
29
Electron Work Function
2.70 eV   
99+
Not Available   
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes   
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
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