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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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Mendeleev's 1906 Periodic Table

Mendeleev's periodic table of 1906, the last drawn up by Mendeleev himself, and published in the 8th edition of his textbook, Principles of Chemistry. Mendeleev died in 1907.

Mendeleev DI, Osnovy khimii (Principles of Chemistry), 8th edition, 1906, MP Frolova, Saint Petersburg.

• H retains the position of 1871
• The triad of Cu, Ag, Au is still duplicated.
• The noble gases are Group O
• This arrangement predates the concepts of atomic number and electron configuration
• Coronium is shown with a dash

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© Mark R. Leach Ph.D. 1999 –

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