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Chemical Properties of Iridium and Radium


Chemical Properties of Radium and Iridium


Chemical Properties

Chemical Formula
Ir   
Ra   

Isotopes
  
  

Known Isotopes
34   
5
33   
6

Electronegativity
  
  

Pauling Electronegativity
2.20   
4
0.90   
99+

Allred Rochow Electronegativity
1.55   
11
0.97   
38

Mulliken-Jaffe Electronegativity
Not Available   
0.92   
20

Allen Electronegativity
1.68   
17
0.89   
99+

Electropositivity
  
  

Pauling Electropositivity
1.80   
99+
3.10   
5

Ionization Energies
  
  

1st Energy Level
880.00 kJ/mol   
9
509.30 kJ/mol   
99+

2nd Energy Level
1,600.00 kJ/mol   
35
979.00 kJ/mol   
99+

Electrochemical Equivalent
1.14 g/amp-hr   
99+
4.22 g/amp-hr   
6

Electron Work Function
4.55 eV   
13
Not Available   

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

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