The INTERNET Database of Periodic TablesThere 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.
2011 Suggested Periodic Table Up To Z ≤ 172, Based on Dirac–Fock Calculations A suggested periodic table up to Z ≤ 172, based on Dirac–Fock calculations on atoms and ions Extended Average Level (EAL) Dirac–Fock calculations on atoms and ions agree with earlier work in that a rough shellfilling order for the elements. [This new] Periodic Table develops further that of Fricke, Greiner and Waber [Theor. Chim. Acta 1971, 21, 235] by formally assigning the elements 121–164 to (nlj) slots on the basis of the electron configurations of their ions. Simple estimates are made for likely maximum oxidation states, i, of these elements M in their MXi compounds:
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