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2019 has been designated the International Year of the Periodic Table as it is the 150th Anniversary of the formulation of Mendeleev's Tabelle I

Internet Database of Periodic Tables


There are thousands 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.

Use the buttons below to select from the 1000+ Periodic Tables in the database:

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1904

Mendeleev's 1904 Periodic Table

Mendeleev periodic table formulation from 1904.

This formulation was prepared to go with Mendeleev's article predicting that the ether (aether) would be found at the head of group zero in period zero. Also that dashes are left for six elements between H and He.

The predicted elements eka-boron (scandium), eka-aluminium (gallium) & eka-silicon (germanium) are present but the radioactive eka-manganese (technetium) is not. Also, the noble gas elements are on the left hand side of the formulation:

Thanks to Philip Stewart for the corrections and details.

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Periodic Table, What is it showing?
Binary Compounds

© Mark R. Leach 1999-


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