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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:  2013 PT id = 570, Type = non-chem

London, Periodic Table of

Like the Tube Map, the Periodic Table is an endlessly fascinating thing. Over the years, the format has been adapted to all kinds of schemes. A few years ago, we tried to make sense of London in this way, by arranging important facets of the capital into rows and columns. It's been a while, so we've now updated it, with a few changed entries and a general tidy up. Can you work out the identity of each London 'element'? Can you spot hidden patterns and trends? Can you suggest improvements?

Thanks to Eric Scerri for the tip!
See the website EricScerri.com and Eric's Twitter Feed.

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –

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This free, open access web book is an ongoing project and your input is appreciated.