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Chemical Properties of Protactinium and Nobelium


Chemical Properties of Nobelium and Protactinium


Chemical Properties

Chemical Formula
Pa   
No   

Isotopes
  
  

Known Isotopes
27   
12
13   
26

Electronegativity
  
  

Pauling Electronegativity
1.50   
27
1.30   
32

Allred Rochow Electronegativity
1.14   
28
1.20   
27

Electropositivity
  
  

Pauling Electropositivity
2.50   
27
2.70   
22

Ionization Energies
  
  

1st Energy Level
568.00 kJ/mol   
99+
642.00 kJ/mol   
99+

2nd Energy Level
1,128.00 kJ/mol   
99+
1,254.00 kJ/mol   
99+

3rd Energy Level
1,814.00 kJ/mol   
99+
2,643.00 kJ/mol   
99+

4th Energy Level
2,991.00 kJ/mol   
99+
3,956.00 kJ/mol   
39

Electrochemical Equivalent
1.72 g/amp-hr   
99+
4.83 g/amp-hr   
4

Electron Work Function
Not Available   
Not Available   

Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Radioactivity   

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