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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:

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3750 BCE

Discovery of Carbon

C

Carbon, atomic number 6, has a mass of 12.011 au.

Carbon has many allotropes, including: graphite, diamond, graphene, C60, single wall nanotubes, etc.

Carbon had its earliest use in about 3750 BCE. It was discovered by Egyptians and Sumerians.

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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