Discovery of Three Elements Predicted by Mendeleev’s Table: Gallium, Scandium, and Germanium (2021)
Orna, Mary Virginia (Author)
Fontani, Marco (Author)
Giunta, Carmen J. (Editor)
Mainz, Vera V. (Editor)
Girolami, Gregory S. (Editor)
Springer International Publishing
Pages: 227-257
Publication date: 2021
Language: English
The 1869 publication of Dmitri Mendeleev’s systematic table contained lacunae left by the author to signal the presumed existence of not-yet-discovered simple bodies. Three of the missing elements were discovered within a span of time from 1875 to 1886: gallium, scandium, and germanium. Aside from the great psychological impact, they served to decisively change the attitude of the scientific world with respect to the validity of the periodic system of the elements. Although Paul-Émile Lecoq de Boisbaudran, Lars Fredrik Nilson, and Clemens Alexander Winkler are the acknowledged discoverers of these three elements, respectively, questions arise about the nature of discovery itself. Can their discovery be attributed to Mendeleev, who speculated on and predicted their existence? Must discovery be attributed to those who only detected the elements, or to those who isolated the oxides of the elements, or to those who isolated the free elements themselves? Arguments can be made for recognizing all of these cases.
...MoreBook Carmen J. Giunta; Vera V. Mainz; Gregory S. Girolami (2021) 150 Years of the Periodic Table: A Commemorative Symposium.
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