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Chemical Properties of Praseodymium and Fermium

Praseodymium
Fermium
Chemical Properties of Fermium and Praseodymium


Chemical Properties
Chemical Formula
Pr   
Fm   
Isotopes
  
  
Known Isotopes
31   
8
18   
21
Electronegativity
  
  
Pauling Electronegativity
1.13   
99+
1.30   
32
Allred Rochow Electronegativity
1.07   
32
1.20   
27
Electropositivity
  
  
Pauling Electropositivity
2.87   
12
2.70   
22
Ionization Energies
  
  
1st Energy Level
527.00 kJ/mol   
99+
627.00 kJ/mol   
99+
2nd Energy Level
1,020.00 kJ/mol   
99+
1,225.00 kJ/mol   
99+
3rd Energy Level
2,086.00 kJ/mol   
99+
2,363.00 kJ/mol   
99+
4th Energy Level
3,761.00 kJ/mol   
99+
3,792.00 kJ/mol   
99+
5th Energy Level
5,551.00 kJ/mol   
29
Not Available   
Electrochemical Equivalent
1.75 g/amp-hr   
40
3.20 g/amp-hr   
13
Electron Work Function
2.70 eV   
99+
Not Available   
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes   
Ionization, Radioactive Isotopes, Radioactivity   
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