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: Dr Mark R Leach.
Use the buttons below to select from the 1000+ Periodic Tables in the database:
Stedman's Conic System
D. F. Stedman, A Periodic Arrangement of the Elements, Canadian Journal of Research, 1947, 25b(3): 199-210, https://doi.org/10.1139/cjr47b-023
Stedman's conic system from van Spronsen:
© Mark R. Leach 1999-
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