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What is the Periodic Table Showing? Periodicity

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. The database holds information on periodic tables, the discovery of the elements, the elucidation of atomic weights and the discovery of atomic structure (and much, much more).

   Use the drop menus or search box (below) to Select or Search the 1400 entries in the database: 

  Or, Search by Text String:       
Year:  1969 PT id = 624, Type = formulation

Mazurs Periodic System of Chemical Elements

A foldout from the Mazurs book, Graphical Representations of The Periodic System During 100 Years.

Mazurs said he drew it in 1967 and published it in 1969: ref. E Mazurs, A new numeration of periods in the periodic system and the Kessler Principle for the construction of the periodic table, Canad. Chem. Edu. 4(3), 21-23, 1969.

It is a Janet's modified system to show the irregularities – Lu, Cr, Pd etc. Click here for a larger version:

Mazurs PT

Thanks to Philip Stewart for the tip!

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –

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