Chemical Properties of Lanthanum and Uranium
Chemical Properties
Chemical Formula
La
U
Isotopes
Known Isotopes
31
8
25
14
Electronegativity
Pauling Electronegativity
1.10
99+
1.38
28
Allred Rochow Electronegativity
1.08
31
1.22
26
Electropositivity
Pauling Electropositivity
2.90
10
2.62
26
Ionization Energies
1st Energy Level
538.10 kJ/mol
99+
597.60 kJ/mol
99+
2nd Energy Level
1,067.00 kJ/mol
99+
1,420.00 kJ/mol
99+
3rd Energy Level
1,850.30 kJ/mol
99+
1,900.00 kJ/mol
99+
4th Energy Level
4,819.00 kJ/mol
22
3,145.00 kJ/mol
99+
5th Energy Level
5,940.00 kJ/mol
25
Not Available
Electrochemical Equivalent
1.73 g/amp-hr
99+
1.48 g/amp-hr
99+
Electron Work Function
3.50 eV
31
3.63 eV
30
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity
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