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Chemical Properties of Thulium and Mendelevium


Chemical Properties of Mendelevium and Thulium


Chemical Properties

Chemical Formula
Tm   
Md   

Isotopes
  
  

Known Isotopes
32   
7
16   
23

Electronegativity
  
  

Pauling Electronegativity
1.25   
35
1.30   
32

Allred Rochow Electronegativity
1.11   
29
1.20   
27

Electropositivity
  
  

Pauling Electropositivity
2.75   
19
2.70   
22

Ionization Energies
  
  

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

2nd Energy Level
1,160.00 kJ/mol   
99+
1,235.00 kJ/mol   
99+

3rd Energy Level
2,285.00 kJ/mol   
99+
2,470.00 kJ/mol   
99+

4th Energy Level
4,120.00 kJ/mol   
33
3,840.00 kJ/mol   
99+

Electrochemical Equivalent
2.10 g/amp-hr   
26
3.21 g/amp-hr   
12

Electron Work Function
Not Available   
Not Available   

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

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