Home
Compare Metals


Chemical Properties of Protactinium and Fermium


Chemical Properties of Fermium and Protactinium


Chemical Properties

Chemical Formula
Pa   
Fm   

Isotopes
  
  

Known Isotopes
27   
12
18   
21

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+
627.00 kJ/mol   
99+

2nd Energy Level
1,128.00 kJ/mol   
99+
1,225.00 kJ/mol   
99+

3rd Energy Level
1,814.00 kJ/mol   
99+
2,363.00 kJ/mol   
99+

4th Energy Level
2,991.00 kJ/mol   
99+
3,792.00 kJ/mol   
99+

Electrochemical Equivalent
1.72 g/amp-hr   
99+
3.20 g/amp-hr   
13

Electron Work Function
Not Available   
Not Available   

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

Atomic >>
<< Physical

Compare Actinide Series

Actinide Metals

Actinide Metals

» More Actinide Metals

Compare Actinide Series

» More Compare Actinide Series