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The INTERNET Database of Periodic Tables

There are thousands of periodic tables in web space, but this is the only comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Mark R. Leach Ph.D.

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Valentine Periodic Table

A Valentine Periodic Table by Claude Bayeh:

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© Mark R. Leach Ph.D. 1999 – 2020

Queries, Suggestions, Bugs, Errors, Typos...

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This free, open access web book is an ongoing project and your input is appreciated.