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.
From orijikan.com: a great summary paper by Dr. Eric Scerri on the role of triads in evolution of the periodic table and a paper by Dr. Alfio Zambon inspired this work. Here is my contribution: the Triadic Networks (TN), which is a general mathematical design, and the Triadic Elemental Networks (TEN), that apply that design to chemical elements. For a full discussion, read the pdf here.
© Mark R. Leach 1999-
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counter started in 2011