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Chemical Properties of Aluminium and Neptunium

Aluminium
Neptunium
Chemical Properties of Neptunium and Aluminium


Chemical Properties
Chemical Formula
Al   
Np   
Isotopes
  
  
Known Isotopes
11   
27
20   
19
Electronegativity
  
  
Pauling Electronegativity
1.61   
22
1.36   
29
Sanderson Electronegativity
1.71   
13
Not Available   
Allred Rochow Electronegativity
1.47   
14
1.22   
26
Mulliken-Jaffe Electronegativity
1.83   
8
Not Available   
Allen Electronegativity
1.61   
20
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.39   
32
2.64   
25
Ionization Energies
  
  
1st Energy Level
577.50 kJ/mol   
99+
604.50 kJ/mol   
99+
2nd Energy Level
1,816.70 kJ/mol   
19
1,128.00 kJ/mol   
99+
3rd Energy Level
2,744.80 kJ/mol   
38
1,997.00 kJ/mol   
99+
4th Energy Level
11,577.00 kJ/mol   
3
3,242.00 kJ/mol   
99+
5th Energy Level
14,842.00 kJ/mol   
2
Not Available   
6th Energy Level
18,379.00 kJ/mol   
2
Not Available   
7th Energy level
23,326.00 kJ/mol   
2
Not Available   
8th Energy Level
27,465.00 kJ/mol   
2
Not Available   
9th Energy Level
31,853.00 kJ/mol   
2
Not Available   
10th Energy Level
38,473.00 kJ/mol   
4
Not Available   
11th Energy Level
42,647.00 kJ/mol   
5
Not Available   
Electrochemical Equivalent
0.34 g/amp-hr   
99+
1.77 g/amp-hr   
39
Electron Work Function
4.28 eV   
19
Not Available   
Other Chemical Properties
Chemical Stability, Ionization, Radioactive Isotopes   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
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