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Chemical Properties of Radium and Tantalum

Radium
Tantalum
Chemical Properties of Tantalum and Radium


Chemical Properties
Chemical Formula
Ra   
Ta   
Isotopes
  
  
Known Isotopes
33   
6
31   
8
Electronegativity
  
  
Pauling Electronegativity
0.90   
99+
1.50   
27
Allred Rochow Electronegativity
0.97   
38
1.33   
22
Mulliken-Jaffe Electronegativity
0.92   
20
Not Available   
Allen Electronegativity
0.89   
99+
1.34   
33
Electropositivity
  
  
Pauling Electropositivity
3.10   
5
2.50   
27
Ionization Energies
  
  
1st Energy Level
509.30 kJ/mol   
99+
761.00 kJ/mol   
18
2nd Energy Level
979.00 kJ/mol   
99+
1,500.00 kJ/mol   
40
Electrochemical Equivalent
4.22 g/amp-hr   
6
1.35 g/amp-hr   
99+
Electron Work Function
Not Available   
4.25 eV   
21
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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