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Chemical Properties of Strontium and Radium

Strontium
Radium
Chemical Properties of Radium and Strontium


Chemical Properties
Chemical Formula
Sr   
Ra   
Isotopes
  
  
Known Isotopes
27   
12
33   
6
Electronegativity
  
  
Pauling Electronegativity
0.95   
99+
0.90   
99+
Sanderson Electronegativity
0.72   
27
Not Available   
Allred Rochow Electronegativity
0.99   
37
0.97   
38
Mulliken-Jaffe Electronegativity
1.00   
18
0.92   
20
Allen Electronegativity
0.96   
40
0.89   
99+
Electropositivity
  
  
Pauling Electropositivity
3.05   
7
3.10   
5
Ionization Energies
  
  
1st Energy Level
549.50 kJ/mol   
99+
509.30 kJ/mol   
99+
2nd Energy Level
1,064.20 kJ/mol   
99+
979.00 kJ/mol   
99+
3rd Energy Level
4,138.00 kJ/mol   
10
Not Available   
4th Energy Level
5,500.00 kJ/mol   
13
Not Available   
5th Energy Level
6,910.00 kJ/mol   
18
Not Available   
6th Energy Level
8,760.00 kJ/mol   
18
Not Available   
7th Energy level
10,230.00 kJ/mol   
19
Not Available   
8th Energy Level
11,800.00 kJ/mol   
19
Not Available   
9th Energy Level
15,600.00 kJ/mol   
17
Not Available   
10th Energy Level
17,100.00 kJ/mol   
19
Not Available   
11th Energy Level
31,270.00 kJ/mol   
6
Not Available   
Electrochemical Equivalent
1.64 g/amp-hr   
99+
4.22 g/amp-hr   
6
Electron Work Function
2.59 eV   
99+
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
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