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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.

Use the drop menus below to search & select from the more than 1100 Period Tables in the database:

Text search:       




2018

Chemical Galaxy III

Updated from Philip Stewart's Chemical Galaxy II, version III shows all the recently discovered elements, including: 117 (Ts) and 118 (Og).

Click here for the full size .PDF version (which gives more data):

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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