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Chemical Properties of Holmium and Praseodymium

Holmium
Praseodymium
Chemical Properties of Praseodymium and Holmium


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