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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: 

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Year:  1935 PT id = 1394, Type = formulation structure element

Tabelle Riassuntive E Bibliografia Delle Trasmutazioni Artificiali (Summary Tables And Bibliography Of Artificial Transmutations)

A 1935 paper by Fae which predates the Segrè Chart by 10 years: Fea, G. Tabelle Riassuntive e Bibliografia Delle Trasmutazioni Artificiali. Nuovo Cim 12, 368–406 (1935). https://doi.org/10.1007/BF02958685 (Thanks to Mario Rodríguez Peña who found this paper!)

Abstract (Google Translate):

"Given the significant developments in the study of artificial transmutations, especially after the impetus provided by the discovery of induced radioactivity, it seemed useful to the writer to summarize in some synoptic tables what has been obtained to date by the many researchers who have studied the topic.

"An extensive bibliography of the works consulted for the compilation of the tables follows, as well as a table representing, in the neutron-proton diagram, what is known about stable and radioactive isotopes."



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© Mark R. Leach Ph.D. 1999 –


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