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.
Periodic Table Videos: Before & After Mendeleev
Two videos by the Chemical Heritage Foundation: Part 1 Before Mendeleev and Part 2 Mendeleeve & Beyond.
The videos feature interviews with Dr. Eric Scerri of UCLA, with added narration, animations, illustrations, photos, captions, etc. by David V. Black as well as publication artwork and notes by Edward G. Mazurs. Part 1 covers the events leading up to Mendeleevís invention of the periodic table including the work of several precursors such as de Chancourtois, Newlands, Odling, Hinrichs, and Meyer. The second part covers Mendeleevís working out of his periodic system and the work of his successors, as well as some interesting questions such as whether the periodic table can be entirely deduced from quantum mechanics and the mystery of the Knightís Move pattern of properties. Part 1 is 17 minutes long and Part 2 is just under 20 minutes.
© Mark R. Leach 1999-
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