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Chemical Properties of Beryllium and Thallium

Beryllium
Thallium
Chemical Properties of Thallium and Beryllium


Chemical Properties
Chemical Formula
Be   
Tl   
Isotopes
  
  
Known Isotopes
9   
29
32   
7
Electronegativity
  
  
Pauling Electronegativity
1.57   
24
1.62   
21
Sanderson Electronegativity
1.81   
12
2.25   
5
Allred Rochow Electronegativity
1.47   
14
1.44   
17
Mulliken-Jaffe Electronegativity
1.54   
12
1.96   
6
Allen Electronegativity
1.58   
23
1.79   
13
Electropositivity
  
  
Pauling Electropositivity
2.43   
30
2.38   
33
Ionization Energies
  
  
1st Energy Level
899.50 kJ/mol   
7
589.40 kJ/mol   
99+
2nd Energy Level
1,757.10 kJ/mol   
23
1,971.00 kJ/mol   
14
3rd Energy Level
14,848.70 kJ/mol   
2
2,878.00 kJ/mol   
32
4th Energy Level
21,006.60 kJ/mol   
2
Not Available   
Electrochemical Equivalent
0.17 g/amp-hr   
99+
7.63 g/amp-hr   
2
Electron Work Function
4.98 eV   
6
3.84 eV   
28
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes   
Corrosion, Ionization, Radioactive Isotopes, Solubility   
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