Laing's Revised Periodic Table with the Lanthanides Repositioned
Michael Laing's "Revised Periodic Table with the Lanthanides Repositioned", from Foundations of Chemistry 7:203-233.
Philip Stewart's modification of the Laing formulation:
Philip Stewart says (in a personal communication):
"It seems wrong to suggest an analogy between Pr to Sm and Dy to Tm with the V, Cr, Mn, Fe groups. I have pushed them to the right to suggest that those lanthanides are like the old group VIII (including the coinage metals); like them they cannot use all their outer electrons in bonding (with the exception of Ru viii and Os viii. I have treated the actinides differently to take account of Pa v and U vi. It's ability to lose the juxtaposition of Tc and Pm, but it is physical rather than chemical anyway."
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