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Chemical Properties of Radium and Actinium


Chemical Properties of Actinium and Radium


Chemical Properties

Chemical Formula
Ra   
Ac   

Isotopes
  
  

Known Isotopes
33   
6
29   
10

Electronegativity
  
  

Pauling Electronegativity
0.90   
99+
1.10   
99+

Allred Rochow Electronegativity
0.97   
38
1.00   
36

Mulliken-Jaffe Electronegativity
0.92   
20
Not Available   

Allen Electronegativity
0.89   
99+
Not Available   

Electropositivity
  
  

Pauling Electropositivity
3.10   
5
2.90   
10

Ionization Energies
  
  

1st Energy Level
509.30 kJ/mol   
99+
499.00 kJ/mol   
99+

2nd Energy Level
979.00 kJ/mol   
99+
1,170.00 kJ/mol   
99+

3rd Energy Level
Not Available   
1,900.00 kJ/mol   
99+

4th Energy Level
Not Available   
4,700.00 kJ/mol   
23

Electrochemical Equivalent
4.22 g/amp-hr   
6
2.82 g/amp-hr   
18

Electron Work Function
Not Available   
Not Available   

Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   

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