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.
Mazurs' Valence Periodic Table
In his 1974 book Graphic Representations of the Periodic System During One Hundred Years, University of Alabama Press (2nd edition) Edward G. Mazurs presents a valence periodic table. He classifies this as a Subtype IIIC3-6a formulation:
© Mark R. Leach 1999-
Queries, Suggestions, Bugs, Errors, Typos...
If you have any:
This free, open access web book is an ongoing project and your input is appreciated.
counter started in 2011