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Chemical Properties of Zirconium and Promethium

Zirconium
Promethium
Chemical Properties of Promethium and Zirconium


Chemical Properties
Chemical Formula
Zr   
Pm   
Isotopes
  
  
Known Isotopes
24   
15
27   
12
Electronegativity
  
  
Pauling Electronegativity
1.33   
30
Not Available   
Sanderson Electronegativity
0.90   
25
Not Available   
Allred Rochow Electronegativity
1.22   
26
1.07   
32
Allen Electronegativity
1.32   
34
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.67   
24
Not Available   
Ionization Energies
  
  
1st Energy Level
640.10 kJ/mol   
99+
540.00 kJ/mol   
99+
2nd Energy Level
1,270.00 kJ/mol   
99+
1,050.00 kJ/mol   
99+
3rd Energy Level
2,218.00 kJ/mol   
99+
2,150.00 kJ/mol   
99+
4th Energy Level
3,313.00 kJ/mol   
99+
3,970.00 kJ/mol   
38
5th Energy Level
7,752.00 kJ/mol   
10
Not Available   
6th Energy Level
9,500.00 kJ/mol   
15
Not Available   
Electrochemical Equivalent
0.85 g/amp-hr   
99+
1.80 g/amp-hr   
36
Electron Work Function
4.05 eV   
26
Not Available   
Other Chemical Properties
Anti Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Solubility   
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