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Chemical Properties of Actinium and Yttrium


Chemical Properties of Yttrium and Actinium


Chemical Properties

Chemical Formula
Ac   
Y   

Isotopes
  
  

Known Isotopes
29   
10
19   
20

Electronegativity
  
  

Pauling Electronegativity
1.10   
99+
1.22   
38

Sanderson Electronegativity
Not Available   
0.65   
29

Allred Rochow Electronegativity
1.00   
36
1.11   
29

Allen Electronegativity
Not Available   
1.12   
38

Electropositivity
  
  

Pauling Electropositivity
2.90   
10
2.78   
16

Ionization Energies
  
  

1st Energy Level
499.00 kJ/mol   
99+
600.00 kJ/mol   
99+

2nd Energy Level
1,170.00 kJ/mol   
99+
1,180.00 kJ/mol   
99+

3rd Energy Level
1,900.00 kJ/mol   
99+
1,980.00 kJ/mol   
99+

4th Energy Level
4,700.00 kJ/mol   
23
5,847.00 kJ/mol   
10

5th Energy Level
Not Available   
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
2.82 g/amp-hr   
18
1.11 g/amp-hr   
99+

Electron Work Function
Not Available   
3.10 eV   
35

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

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