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.
White's Periodic Table
The periodic table of White shows the normal state electronic configurations, from H.E. White. Introduction to Atomic Spectra. New York: McGraw-Hill, 1934,
Helium is clearly associated with H, and placed above Be in accord with the s2 electron configuration of the free atom.
© Mark R. Leach 1999-
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