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.
Dutch Periodic Table
A Dutch periodic table formulation, Periodiek Systeem van de Elementen, probably from the mid-nineteen sixties: Element 103 Lr (shown as Lw), discovered 1961, is listed but Rf 104, discovered in 1964 is not shown.
Note how this formulation shows the noble gases, He-Rn, both on the left-side and the right-side.
This historic and original periodic table is listed for sale (Nov. 2015) on the Not On The Hight Street website.
© 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