(Paris, Gauthier-Villars), 1914. 4to. No wrappers. In: ""Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences"", Tome 158, No 24. Pp. (1737-) 1839. (Entire issue offered). The paper: pp. 1796-1798.
Reference : 47269
First appearance of an importent paper proving the existence of lead isotopes and thus changed the course of chemical thinking by proving that the periodic table of elements could not be founded only on atomic weights. The paper is translated in Leicester ""Source Book in Chemistry 1900-1950"" with the translated title ""The Atomic Weight of Lead from Pitchblende"".
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