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Chemical Properties of Neptunium and Actinium
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Neptunium
Actinium
Chemical Properties of Actinium and Neptunium
Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Chemical Properties
Chemical Formula
Np
Ac
Isotopes
Known Isotopes
20
19
29
10
Electronegativity
Pauling Electronegativity
1.36
29
1.10
99+
Allred Rochow Electronegativity
1.22
26
1.00
36
Electropositivity
Pauling Electropositivity
2.64
25
2.90
10
Ionization Energies
1st Energy Level
604.50 kJ/mol
99+
499.00 kJ/mol
99+
2nd Energy Level
1,128.00 kJ/mol
99+
1,170.00 kJ/mol
99+
3rd Energy Level
1,997.00 kJ/mol
99+
1,900.00 kJ/mol
99+
4th Energy Level
3,242.00 kJ/mol
99+
4,700.00 kJ/mol
23
Electrochemical Equivalent
1.77 g/amp-hr
39
2.82 g/amp-hr
18
Electron Work Function
Not Available
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Ionization, Radioactive Isotopes, Radioactivity, Solubility
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