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Chemical Properties of Promethium and Gadolinium


Chemical Properties of Gadolinium and Promethium


Chemical Properties

Chemical Formula
Pm   
Gd   

Isotopes
  
  

Known Isotopes
27   
12
26   
13

Electronegativity
  
  

Pauling Electronegativity
Not Available   
1.20   
39

Allred Rochow Electronegativity
1.07   
32
1.11   
29

Electropositivity
  
  

Pauling Electropositivity
Not Available   
2.80   
15

Ionization Energies
  
  

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

2nd Energy Level
1,050.00 kJ/mol   
99+
1,170.00 kJ/mol   
99+

3rd Energy Level
2,150.00 kJ/mol   
99+
1,990.00 kJ/mol   
99+

4th Energy Level
3,970.00 kJ/mol   
38
4,250.00 kJ/mol   
30

Electrochemical Equivalent
1.80 g/amp-hr   
36
1.96 g/amp-hr   
32

Electron Work Function
Not Available   
3.10 eV   
35

Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Corrosion, Flammable, Ionization, Radioactive Isotopes   

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