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Chemical Properties of Tungsten and Promethium

Tungsten
Promethium
Chemical Properties of Promethium and Tungsten


Chemical Properties
Chemical Formula
W   
Pm   
Isotopes
  
  
Known Isotopes
33   
6
27   
12
Electronegativity
  
  
Pauling Electronegativity
2.36   
2
Not Available   
Sanderson Electronegativity
0.98   
23
Not Available   
Allred Rochow Electronegativity
1.40   
19
1.07   
32
Allen Electronegativity
1.47   
29
Not Available   
Electropositivity
  
  
Pauling Electropositivity
1.64   
99+
Not Available   
Ionization Energies
  
  
1st Energy Level
770.00 kJ/mol   
16
540.00 kJ/mol   
99+
2nd Energy Level
1,700.00 kJ/mol   
29
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
1.14 g/amp-hr   
99+
1.80 g/amp-hr   
36
Electron Work Function
4.55 eV   
13
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Solubility   
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