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Chemical Properties of Radium and 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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