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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.

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1911

van den Broek's Periodic Table 2

From Wikipedia: Antonius Johannes van den Broek (1870-1926) was a Dutch amateur physicist notable for being the first who realized that the number of an element in the periodic table (now called atomic number) corresponds to the charge of its atomic nucleus. The 1911 inspired the experimental work of Henry Moseley, who found good experimental evidence for it by 1913. van den Broek envisaged the basic building block to be the 'alphon', which weighed twice as much as a hydrogen atom.

Read more in Chapter 4, Antonius Van Den Broek, Moseley and the Concept of Atomic Number by Eric Scerri. This chapter can be found in the book: For Science, King & Country: The Life and Legacy of Henry Moseley (Edited by Roy MacLeod, Russell G Egdell and Elizabeth Bruton).

van den Broek's periodic table of 1907: Annalen der Physik, 4 (23), (1907), 199-203

van den Broek's periodic table of 1911: Physikalische Zeitschrift, 12 (1911), 490-497); and also a paper in Nature the same year entitled: The Number of Possible Elements and Mendeléff's "Cubic" Periodic System, Nature volume 87, page 78 (20 July 1911)

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

© Mark R. Leach Ph.D. 1999 –

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