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The 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: Mark R. Leach Ph.D.

Use the drop menus below to search & select from the more than 1100 Period Tables in the database:

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2014

Lado's Periodic Table Series Analysis

By Solomon F Lado, a mathematical analysis.

Abstract (full paper):

"There is a periodic table, at least in terms of atomic number and electronic configuration, for every positive integer, c >= 2, with a capacity of 20c2 – 21c + 1 elements, where c is the construction index, and c equals one plus the maximum number of electrons per orbital of an atom. The c-construction index and the c-construction-index formulae are unique to this report. The maximum number of potential orbitals per sub-shell of an atom = 3n-1 where n is the index of the s, p, d, and f sub-shells":

Lado

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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