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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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Periodic Tables from the year 1748:

1748   Discovery of Platinum


Year:  1748 PT id = 858

Discovery of Platinum

Pt

Platinum, atomic number 78, has a mass of 195.084 au.

Platinum was first isolated in 1748 by A. de Ulloa, although it had been used by pre-Colombian Americans.

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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