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Chemical Properties of Palladium and Protactinium

Palladium
Protactinium
Chemical Properties of Protactinium and Palladium


Chemical Properties
Chemical Formula
Pd   
Pa   
Isotopes
  
  
Known Isotopes
38   
1
27   
12
Electronegativity
  
  
Pauling Electronegativity
2.20   
4
1.50   
27
Allred Rochow Electronegativity
1.35   
21
1.14   
28
Allen Electronegativity
1.59   
22
Not Available   
Electropositivity
  
  
Pauling Electropositivity
1.80   
99+
2.50   
27
Ionization Energies
  
  
1st Energy Level
520.23 kJ/mol   
99+
568.00 kJ/mol   
99+
2nd Energy Level
7,298.22 kJ/mol   
2
1,128.00 kJ/mol   
99+
3rd Energy Level
11,815.13 kJ/mol   
3
1,814.00 kJ/mol   
99+
4th Energy Level
Not Available   
2,991.00 kJ/mol   
99+
Electrochemical Equivalent
1.99 g/amp-hr   
30
1.72 g/amp-hr   
99+
Electron Work Function
5.12 eV   
3
Not Available   
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
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