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.
Schaeffer's IUPAC Periodic Table Quantum Mechanics Consistent
IUPAC Periodic Table Quantum Mechanics Consistent, Bernard Schaeffer, Journal of Modern Physics, Vol. 5, No. 3, February 24, 2014
Abstract: Most periodic tables of the chemical elements are between 96% and 100% in accord with quantum mechanics.
Three elements only do not fit correctly into the official tables, in disagreement with the spherical harmonics and
the Pauli exclusion principle. Helium, belonging to the s-block, should be placed beside hydrogen in the s-block
instead of the p-block. Lutetium and lawrencium belonging to the d-block of the transition metals should not be
in the f-block of the lanthanides or the actinoids. With these slight modifications, the IUPAC table becomes
quantum mechanics consistent.
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