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Chemical Properties of Polonium and Promethium

Polonium
Promethium
Chemical Properties of Promethium and Polonium


Chemical Properties
Chemical Formula
Po   
Pm   
Isotopes
  
  
Known Isotopes
29   
10
27   
12
Electronegativity
  
  
Pauling Electronegativity
2.00   
7
Not Available   
Allred Rochow Electronegativity
1.76   
2
1.07   
32
Mulliken-Jaffe Electronegativity
2.48   
1
Not Available   
Allen Electronegativity
2.19   
2
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.00   
99+
Not Available   
Ionization Energies
  
  
1st Energy Level
812.10 kJ/mol   
14
540.00 kJ/mol   
99+
2nd Energy Level
Not Available   
1,050.00 kJ/mol   
99+
3rd Energy Level
Not Available   
2,150.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,970.00 kJ/mol   
38
Electrochemical Equivalent
3.90 g/amp-hr   
8
1.80 g/amp-hr   
36
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Solubility   
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