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Chemical Properties of Actinium and Radium


Chemical Properties of Radium and Actinium


Chemical Properties

Chemical Formula
Ac   
Ra   

Isotopes
  
  

Known Isotopes
29   
10
33   
6

Electronegativity
  
  

Pauling Electronegativity
1.10   
99+
0.90   
99+

Allred Rochow Electronegativity
1.00   
36
0.97   
38

Mulliken-Jaffe Electronegativity
Not Available   
0.92   
20

Allen Electronegativity
Not Available   
0.89   
99+

Electropositivity
  
  

Pauling Electropositivity
2.90   
10
3.10   
5

Ionization Energies
  
  

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

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

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

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

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

Electron Work Function
Not Available   
Not Available   

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

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