Periodic Table |
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| What is the Periodic Table Showing? | Periodicity |
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. The database holds information on periodic tables, the discovery of the elements, the elucidation of atomic weights and the discovery of atomic structure (and much, much more).
Periodic Tables from the year 1975 :
| Year: 1975 | PT id = 164, Type = formulation spiral |
Hyde's Periodic Relationships of The Elements
J. Franklin Hyde was an industrual chemist. His PT formulation is available from the Gelest website:

| Year: 1975 | PT id = 744, Type = misc review |
Primo Levi's Elements
Primo Levi's elements, from his book The Periodic Table:

Thanks to Eric Scerri for the tip!
See the website EricScerri.com and Eric's Twitter Feed
| Year: 1975 | PT id = 746, Type = formulation |
Russian Periodic Table(s)
Eric Scerri writes:
"The periodic tables [below], and data, are from some Russian books given to me by the late Ray Hefferlin, when I visited him a few years ago in Tennessee. Sorry, I can't give any source details as the inserts got separated from the book."
The captions say: "Fig. XVII. Block-type periodic table" and "U.L.Kulakov, Classification of the chemical elements on the new background".
Looking at the graphics style, we are guessing they date from the mid-1970s (MRL)



Thanks to Eric Scerri for the tip!
See the website EricScerri.com and Eric's Twitter Feed
| Year: 1975 | PT id = 748, Type = formulation spiral |
Hyde's Periodic Relationships of The Elements (updated)
I received an email from Jeremy Sachs saying:
"Gelest don't seem to offer [this periodic table formulation] anymore, and because their version heavily modifies Hyde's original table, I've reproduced the 1975 version of his table with the permission of his surviving relatives."
Click here to see the full size version.
| Year: 1975 | PT id = 1167, Type = formulation |
Shukarev's Periodic System
Shukarev SA 1975, "On the image of the periodic system with the use of fifth move of late a-elements", Collection of Scientific and Methodological Articles on Chemistry. M.: Higher School, no 4, pp 3-12 (in Russian).
The image has been re-drawn and commented upon.

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| What is the Periodic Table Showing? | Periodicity |
© Mark R. Leach Ph.D. 1999 –
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