Molar ionization energies of the elements

These tables list values of molar ionization energies, measured in kJ mol⁻¹. This is the energy per mole necessary to remove electrons from gaseous atoms or atomic ions. The first molar ionization energy applies to the neutral atoms. The second, third, etc., molar ionization energy applies to the further removal of an electron from a singly, doubly, etc., charged ion. For ionization energies measured in the unit eV, see Ionization energies of the elements (data page). All data from rutherfordium onwards is predicted.

1st–10th

11th–20th

21st–30th

Notes

References

• Ionization energies of the elements (data page)
• Haire, Richard G. (2006). "Transactinides and the future elements". In Morss; Edelstein, Norman M.; Fuger, Jean. The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. p. 1673. ISBN 1-4020-3555-1.  (for predictions)
• Cotton, Simon (2006). Lanthanide and Actinide Chemistry. John Wiley & Sons Ltd. 
• Fricke, Burkhard (1975). "Superheavy elements: a prediction of their chemical and physical properties". Recent Impact of Physics on Inorganic Chemistry 21: 89–144. doi:10.1007/BFb0116498. Retrieved 4 October 2013.  (for predictions)