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Chemical Properties of Praseodymium and Rhenium

Praseodymium
Rhenium
Chemical Properties of Rhenium and Praseodymium


Chemical Properties
Chemical Formula
Pr   
Re   
Isotopes
  
  
Known Isotopes
31   
8
33   
6
Electronegativity
  
  
Pauling Electronegativity
1.13   
99+
1.90   
11
Allred Rochow Electronegativity
1.07   
32
1.46   
15
Allen Electronegativity
Not Available   
1.60   
21
Electropositivity
  
  
Pauling Electropositivity
2.87   
12
2.10   
99+
Ionization Energies
  
  
1st Energy Level
527.00 kJ/mol   
99+
760.00 kJ/mol   
20
2nd Energy Level
1,020.00 kJ/mol   
99+
1,260.00 kJ/mol   
99+
3rd Energy Level
2,086.00 kJ/mol   
99+
2,510.00 kJ/mol   
99+
4th Energy Level
3,761.00 kJ/mol   
99+
3,640.00 kJ/mol   
99+
5th Energy Level
5,551.00 kJ/mol   
29
Not Available   
Electrochemical Equivalent
1.75 g/amp-hr   
40
0.99 g/amp-hr   
99+
Electron Work Function
2.70 eV   
99+
4.96 eV   
7
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes   
Corrosion, Ionization, Radioactive Isotopes, Solubility   
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