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Isotopes and Atomic Weights1

Abstract

POSSIBLY the most important generalisation in the whole history of chemistry is the atomic theory put forward by John Dalton in 1803, and it is a striking tribute to the shrewd intuition of that observer that of his five postulates only one seems to be in the least degree faulty, and more than a century of active and unremitting investigation has been necessary to detect the flaw in that.

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ASTON, F. Isotopes and Atomic Weights1. Nature 107, 334–338 (1921). https://doi.org/10.1038/107334a0

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