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pre 1900 formulations
1900 to 1949 formulations
1950 to 1999 formulations
2000 to 2009 formulations
Spiral formulations
3 dimensional formulations
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The INTERNET Database of Periodic Tables

There are hundreds of periodic tables in web space, but there is only one comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Dr Mark R Leach.

pre 1900 formulations 1900 to 1949 formulations 1950 to 1999 formulations 2000 to 2009 formulations Spiral formulations 3 dimensional formulations
Data mapping periodic tables Miscellaneous periodic tables Books and reviews non-chemistry periodic tables All periodic tables

1945

Segré Chart of Elements & Isotopes

The Segré chart of elements and isotopes arranges atomic nuclei by numbers or protons and numbers of neutrons and is a table of nuclides. There are various ways the axes can be arranged. From elsewhere in this chemogenesis web book:

And from Wikipedia:

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pre 1900 formulations 1900 to 1949 formulations 1950 to 1999 formulations 2000 to 2009 formulations Spiral formulations 3 dimensional formulations
Data mapping periodic tables Miscellaneous periodic tables Books and reviews non-chemistry periodic tables All periodic tables

Periodic Table, What is it showing?
Binary Compounds

© Mark R. Leach 1999-

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