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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 1300 Period Tables in the database: 

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Periodic Tables from the year 1918:

1918   Hackh's Classification of the Elements
1918   Meyer's (Stephan) Periodisches System der Elemente
1918   Cherkesov: Two Periodic Tables
1918   One of Mendelejeff's Tables, Modified

Year:  1918 PT id = 83

Hackh's Classification of the Elements

From Quam & Quam's 1934 review paper.pdf

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Year:  1918 PT id = 367

Meyer's Periodisches System der Elemente

Periodic Table of Meyer (1918) with an intraperiodic accommodation of the rare earths. Reproduced from Meyer, S., 1918. Phys. Z. 19, 178.

Philip Stewart has provided a bit more detail:

Stefan Meyer (1872-1949) was an Austrian physicist, no relation of Julius Lothar Meyer. He had a special interest in 'rare earth' and radioactive elements. He published several versions of the periodic table. In this definitive version of 1918, note elements 69-72. Tu I is 'thulium I', Ad is Aldeberanium (Yb), Cp is Cassiopeium (Lu) and Tu II is 'thulium II' (Hf).:

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Year:  1918 PT id = 1260

Cherkesov: Two Periodic Tables

von Bichowsky FR, The place of manganese in the periodic system, J. Am. Chem. Soc. 1918, 40, 7, 1040–1046 Publication Date: July 1, 1918 

René Vernon writes:

"In this curious article, von Bichowsky, a physical chemist (1889-1951), mounted an argument for regarding Mn as belonging to group 8 (see table 1 below) rather than group 7 (table 2). His article has effectively been assigned to the dustbin of history, having apparently gathered zero citations over the past 103 years.

"Items of note in his 24-column table:

von Bichowsky made his argument for Mn in group 8, on the following grounds:

I can further add:

Moving forward precisely 100 years, Rayner-Canham (2018) made the following observations:

I've also attached a modern interpretation of von Bichowsky’s table. It's curious how there are eight metals (Fe aside) capable of, or thought to be capable of, achieving +8. I am not sure that a table of this kind with Lu in group 3 is possible, without upsetting its symmetry."

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Year:  1918 PT id = 1300

One of Mendelejeff's Tables, Modified

From Smith A 1918, General Chemistry for Colleges, 2nd ed., The Century Co., New York, p. 299

René Vernon writes:

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –

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