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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:  2018 PT id = 938, Type = formulation

Puddenphatt & Monagham Periodic Table

Jeries Rihani's version of R. J. Puddenphatt and P. K. Monaghan, published in1989, but is not an exact copy. The differences are as follows:

  1. It adds color: YELLOW for the s-block, GREEN for the p-block, BLUE for the d-block and PURPLE for the f-block.
  2. It avoids being congested since it excludes the electronic configurations of the elements.
  3. It is updated and includes the atomic numbers 119 and 120.
  4. It shows that it is symmetrical around the vertical axis.
  5. The f-block, like all the other blocks, ends with even atomic numbers.

Puddephatt and Monaghan say "their table is after Philips and Williams":

Ref, Phillips CSG & Williams RJP 1965, Inorganic Chemistry, I: Principles and Non-metals, Clarendon Press, Oxford, p. 40.

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –

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