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.
Jovanovic's 2D Periodic Table
Jovanovic's 2D Periodic Table is based on the atomic number Z and the electron configuration of the elements. There is a full explanatory pdf file on the website:
© Mark R. Leach 1999-
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This free, open access web book is an ongoing project and your input is appreciated.
counter started in 2011