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:
Proper Place for Hydrogen in the Periodic Table
The Proper Place for Hydrogen in the Periodic Table, a paper by Marshall W. Cronyn of the Department of Chemistry, Reed College, Portlland.
Cronin writes in the Journal of Chemical Education Vol. 80, 94 -951: "After more than 130 years of construction, the place of hydrogen in the periodic table is still the subject of doubt, con- fusion, and inadequate explanation that appears to be little more than numerology..." and comes to the conclusion that hydrogen should be positioned above carbon:
© Mark R. Leach 1999-
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