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Chemical Properties of Lanthanum and Yttrium

Lanthanum
Yttrium
Chemical Properties of Yttrium and Lanthanum


Chemical Properties
Chemical Formula
La   
Y   
Isotopes
  
  
Known Isotopes
31   
8
19   
20
Electronegativity
  
  
Pauling Electronegativity
1.10   
99+
1.22   
38
Sanderson Electronegativity
Not Available   
0.65   
29
Allred Rochow Electronegativity
1.08   
31
1.11   
29
Allen Electronegativity
Not Available   
1.12   
38
Electropositivity
  
  
Pauling Electropositivity
2.90   
10
2.78   
16
Ionization Energies
  
  
1st Energy Level
538.10 kJ/mol   
99+
600.00 kJ/mol   
99+
2nd Energy Level
1,067.00 kJ/mol   
99+
1,180.00 kJ/mol   
99+
3rd Energy Level
1,850.30 kJ/mol   
99+
1,980.00 kJ/mol   
99+
4th Energy Level
4,819.00 kJ/mol   
22
5,847.00 kJ/mol   
10
5th Energy Level
5,940.00 kJ/mol   
25
7,430.00 kJ/mol   
14
6th Energy Level
Not Available   
8,970.00 kJ/mol   
17
7th Energy level
Not Available   
11,190.00 kJ/mol   
18
8th Energy Level
Not Available   
12,450.00 kJ/mol   
18
9th Energy Level
Not Available   
14,110.00 kJ/mol   
19
10th Energy Level
Not Available   
18,400.00 kJ/mol   
17
11th Energy Level
Not Available   
19,900.00 kJ/mol   
18
12th Energy Level
Not Available   
36,090.00 kJ/mol   
5
Electrochemical Equivalent
1.73 g/amp-hr   
99+
1.11 g/amp-hr   
99+
Electron Work Function
3.50 eV   
31
3.10 eV   
35
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Chemical Stability, Flammable, Ionization, Radioactive Isotopes, Solubility   
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