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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 1300 Period Tables in the database: 

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Year:  1925 PT id = 308, Type = formulation

Noddack Periodic Table

Ida Noddack studied the periodic table in the first half of the 20th century and was the co-discoverer of the last non-radioactive element to be isolated, rhenium. Later she worked on nuclear fission. In 1925 presented Noddack her formulation:

From Ida Noddack and the Missing Elements by Fathi Habashi, Education in Chemistry (March 2009)

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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