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Chemical Properties of Radium and Thallium

Radium
Thallium
Chemical Properties of Thallium and Radium


Chemical Properties
Chemical Formula
Ra   
Tl   
Isotopes
  
  
Known Isotopes
33   
6
32   
7
Electronegativity
  
  
Pauling Electronegativity
0.90   
99+
1.62   
21
Sanderson Electronegativity
Not Available   
2.25   
5
Allred Rochow Electronegativity
0.97   
38
1.44   
17
Mulliken-Jaffe Electronegativity
0.92   
20
1.96   
6
Allen Electronegativity
0.89   
99+
1.79   
13
Electropositivity
  
  
Pauling Electropositivity
3.10   
5
2.38   
33
Ionization Energies
  
  
1st Energy Level
509.30 kJ/mol   
99+
589.40 kJ/mol   
99+
2nd Energy Level
979.00 kJ/mol   
99+
1,971.00 kJ/mol   
14
3rd Energy Level
Not Available   
2,878.00 kJ/mol   
32
Electrochemical Equivalent
4.22 g/amp-hr   
6
7.63 g/amp-hr   
2
Electron Work Function
Not Available   
3.84 eV   
28
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Corrosion, Ionization, Radioactive Isotopes, Solubility   
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