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Chemical Properties of Europium and Roentgenium

Europium
Roentgenium
Chemical Properties of Roentgenium and Europium


Chemical Properties
Chemical Formula
Eu   
Rg   
Isotopes
  
  
Known Isotopes
31   
8
1   
34
Electronegativity
  
  
Pauling Electronegativity
1.20   
39
Not Available   
Sanderson Electronegativity
1.01   
22
Not Available   
Electropositivity
  
  
Ionization Energies
  
  
1st Energy Level
547.10 kJ/mol   
99+
1,022.70 kJ/mol   
3
2nd Energy Level
1,085.00 kJ/mol   
99+
2,074.40 kJ/mol   
10
3rd Energy Level
2,404.00 kJ/mol   
99+
3,077.90 kJ/mol   
24
4th Energy Level
4,120.00 kJ/mol   
33
4,052.40 kJ/mol   
36
5th Energy Level
Not Available   
5,306.70 kJ/mol   
31
Electrochemical Equivalent
1.89 g/amp-hr   
33
Not Available   
Electron Work Function
2.50 eV   
99+
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
NA   
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