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:

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1970

Abundance of the Elements

A 1970 periodic table by Prof. Wm. F. Sheehan of the University of Santa Clara that claims to show the elements according to relative abundance at the Earth's surface. [However, we dispute the relative areas given to the various elements; there is almost no helium at the Earth's surface, for example.] Click the image to enlarge:

Below are some cartiogram representations, including the relative abundance of the elements in the Earth's crust, from Mark Winter's WebElements website:

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –

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