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pre 1900 formulations
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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.

2019 has been designated the International Year of the Periodic Table as it is the 150th Anniversary of the formulation of Mendeleev's Tabelle I

 pre 1900 formulations  1900 to 1949 formulations  1950 to 1999 formulations  2000 to 2009 formulations    Spiral formulations  3 dimensional formulations
 Data mapping periodic tables  Miscellaneous periodic tables  Books and reviews  non-chemistry periodic tables      All periodic tables


The 8 Periodic Tables most recently added to the database:

2019     Piguet's 3D Periodic Table
1927     Le Roy's Periodic Table
2019     NAWA's Version of Moran's Periodic Spiral
2019     Moran's Periodic Spiral (2019)
1960     International Rectifier Corporation Periodic Table
1935     Rysselberghe's Periodic Table
1969     Dash's Quantum Table of the Periodic System of Elements
1956     Walker & Curthoys' New periodic Table Based of Stability of Atomic Orbitals


2019

Piguet's 3D Periodic Table

From Claude Piguet's paper, Chimia 73 (2019) 165–172, an interesting 3D version of the standard periodic table. The text says: "Periodic table highlighting the location of Rare Earths (red ele- ments). The elements shown in blue correspond to the actinide series":

Thanks to Eric Scerri for the tip!
See the website EricScerri.com and Eric's Twitter Feed.

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1927

Le Roy's Periodic Table

R.H. LeRoy, Teaching the Periodic Classification of Elements, School Science and Mathematics 1927, 27: 793-799. This formulation thulium in group IC and has the actinides in the C groups, analogous to the lanthanides, two decades before Seaborg:

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2019

NAWA's Version of Moran's Periodic Spiral

Periodic table designer Nagayasu Nawa has put his spin on the Moran's Periodic Spiral:

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2019

Moran's Periodic Spiral (2019)

Jeff Moran has been working on his Periodic Spiral for more than twenty years. Here is the latest iteration, click to enlarge:

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1960

International Rectifier Corporation Periodic Table

International Rectifier Corporation was an American power management technology company manufacturing analog and mixed-signal ICs, advanced circuit devices, integrated power systems, and high-performance integrated components for computing. It is now part of Infineon Technologies.

The periodic table below was produced in the late 1950s to early 1960s. The earliest version we can find on the web dates from 1960.

Click to enlarge.

Thanks to Rene for the tip!

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1935

Rysselberghe's Periodic Table

Pierre Van Rysselberghe J. Chem. Educ. vol. 12, no. 10, pp. 474—475 1935.

The author writes:

"The usual relationships between analogous elements are preserved and are in fact emphasized by this new arrangement. The only missing regularity is the natural succession of atomic, numbers, but all periodic classifications have to sacrifice it on account of the rare earths. Moreover, it can easily be restored by reading the horizontal lines n the order indicated by the numbers written on the left of the heavy frame line. Each horizontal line is limited by the frame of the table. For instance, K and Ca on the one hand, Cu and Zn on the other hand, form two distinct horizontal lines, as shown by the different numbers given to these groups. They are at the same level because the valence electrons have the same quantum numbers."

Thanks to Rene for the tip!

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1969

Dash's Quantum Table of the Periodic System of Elements

Harriman H. Dash, A quantum table of the periodic system of elementsInternational Journal of Quantum Chemistry, vol. 3, no. S3A, supplement: Proceedings of the International Symposium on Atomic, Molecular, and Solid?state Theory and Quantum Biology, 13/18 January 1969, pp. 335–340.

The abstract reads:

"The shortcomings of the long form of the periodic table of the chemical elements and the evident need for updating this format are briefly reviewed. To the question 'what format?' quantum physics provides an unequivocal answer. The foundations for the design of a quantum table are outlined. These are based on the principal quantum number as derived from the Schroedinger wave equation, the law of second order constant energy differences, and the coulomb–momentum interaction. These concepts are all combined into a single format which optimally and explicitly relates periodicity to atomic structure and the physical, chemical, and biological properties of the elements. This relationship emphasizes the unity and universality of all sciences."

Thanks to Rene for the tip!

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1956

Walker & Curthoys' New periodic Table Based of Stability of Atomic Orbitals

By W. R. Walker and G. C. Curthoys, A new periodic table based on the energy sequence of atomic orbitals, J. Chem. Educ., 1956, 33 (2), p 69.

The abstract states:

"Since the theory of atomic and molecular orbitals has proven to be of such value in interpreting the data of inorganic chemistry, it is hoped that a new periodic table based on the energy sequence of atomic orbitals will be an aid to the further systematizing of chemical knowledge."

Thanks to Rene for the tip!

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pre 1900 formulations 1900 to 1949 formulations 1950 to 1999 formulations 2000 to 2009 formulations Spiral formulations 3 dimensional formulations
Data mapping periodic tables Miscellaneous periodic tables Books and reviews non-chemistry periodic tables All periodic tables


Periodic Table, What is it showing?
Binary Compounds

© Mark R. Leach 1999-


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