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Chemical Properties of Europium and Niobium

Europium
Niobium
Chemical Properties of Niobium and Europium


Chemical Properties
Chemical Formula
Eu   
Nb   
Isotopes
  
  
Known Isotopes
31   
8
17   
22
Electronegativity
  
  
Pauling Electronegativity
1.20   
39
1.60   
23
Sanderson Electronegativity
1.01   
22
1.42   
16
Allred Rochow Electronegativity
Not Available   
1.23   
25
Allen Electronegativity
Not Available   
1.41   
31
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.40   
31
Ionization Energies
  
  
1st Energy Level
547.10 kJ/mol   
99+
652.10 kJ/mol   
99+
2nd Energy Level
1,085.00 kJ/mol   
99+
1,380.00 kJ/mol   
99+
3rd Energy Level
2,404.00 kJ/mol   
99+
2,416.00 kJ/mol   
99+
4th Energy Level
4,120.00 kJ/mol   
33
3,700.00 kJ/mol   
99+
5th Energy Level
Not Available   
4,877.00 kJ/mol   
36
6th Energy Level
Not Available   
9,847.00 kJ/mol   
11
7th Energy level
Not Available   
12,100.00 kJ/mol   
14
Electrochemical Equivalent
1.89 g/amp-hr   
33
0.69 g/amp-hr   
99+
Electron Work Function
2.50 eV   
99+
4.30 eV   
18
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
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