Foundations of Chemistry

, Volume 17, Issue 1, pp 23–31 | Cite as

The positions of lanthanum (actinium) and lutetium (lawrencium) in the periodic table: an update

  • William B. JensenEmail author


This article updates the author’s 1982 argument that lutetium and lawrencium, rather than lanthanum and actinium, should be assigned to the d-block as the heavier analogs of scandium and yttrium, whereas lanthanum and actinium should be considered as the first members of the f-block with irregular configurations. This update is embedded within a detailed analysis of Lavelle’s abortive 2008 attempt to discredit this suggestion.


Periodic table Group 3 Lanthanum Lutetium Actinium Lawrencium 


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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.Department of ChemistryUniversity of CincinnatiCincinnatiUSA

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