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Chemical Properties of Tantalum and Radium

Tantalum
Radium
Chemical Properties of Radium and Tantalum


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