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Chemical Properties of Praseodymium and Berkelium

Praseodymium
Berkelium
Chemical Properties of Berkelium and Praseodymium


Chemical Properties
Chemical Formula
Pr   
Bk   
Isotopes
  
  
Known Isotopes
31   
8
14   
25
Electronegativity
  
  
Pauling Electronegativity
1.13   
99+
1.30   
32
Allred Rochow Electronegativity
1.07   
32
1.20   
27
Allen Electronegativity
Not Available   
2.70   
1
Electropositivity
  
  
Pauling Electropositivity
2.87   
12
2.70   
22
Ionization Energies
  
  
1st Energy Level
527.00 kJ/mol   
99+
601.00 kJ/mol   
99+
2nd Energy Level
1,020.00 kJ/mol   
99+
1,186.00 kJ/mol   
99+
3rd Energy Level
2,086.00 kJ/mol   
99+
2,152.00 kJ/mol   
99+
4th Energy Level
3,761.00 kJ/mol   
99+
3,434.00 kJ/mol   
99+
5th Energy Level
5,551.00 kJ/mol   
29
Not Available   
Electrochemical Equivalent
1.75 g/amp-hr   
40
3.07 g/amp-hr   
16
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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