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Chemical Properties of Protactinium and Palladium

Protactinium
Palladium
Chemical Properties of Palladium and Protactinium


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