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Chemical Properties of Mendelevium and Promethium


Chemical Properties of Promethium and Mendelevium


Chemical Properties

Chemical Formula
Md   
Pm   

Isotopes
  
  

Known Isotopes
16   
23
27   
12

Electronegativity
  
  

Pauling Electronegativity
1.30   
32
Not Available   

Allred Rochow Electronegativity
1.20   
27
1.07   
32

Electropositivity
  
  

Pauling Electropositivity
2.70   
22
Not Available   

Ionization Energies
  
  

1st Energy Level
635.00 kJ/mol   
99+
540.00 kJ/mol   
99+

2nd Energy Level
1,235.00 kJ/mol   
99+
1,050.00 kJ/mol   
99+

3rd Energy Level
2,470.00 kJ/mol   
99+
2,150.00 kJ/mol   
99+

4th Energy Level
3,840.00 kJ/mol   
99+
3,970.00 kJ/mol   
38

Electrochemical Equivalent
3.21 g/amp-hr   
12
1.80 g/amp-hr   
36

Electron Work Function
Not Available   
Not Available   

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

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