The INTERNET Database of Periodic Tables
There are hundreds of periodic tables in web space, but there is only one comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Dr Mark R Leach.
Sanderson's Periodic Table of the Chemical Elements
Sanderson's 1967 formulation has both the d-block elements and the f-block elements totally removed from the body of the table thus allowing the elements in the Major Groups of Periods 4, 5 and 6 to be grouped with the "typical" elements of Periods 2 and 3.
The Inner Transition elements are from Ce to Yb, i.e., in this ‘‘Rational’’ arrangement there are only thirteen lanthanide metals.
From Michael Laing's paper: A Revised Periodic Table with the Lanthanides Repositioned, Found. Chem. (2005) 7: 203–233
© Mark R. Leach 1999-
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