Foundations of Chemistry 22 (2):137-146 (2020)

Authors
Line Edslev Andersen
Aarhus University
K. Brad Wray
Aarhus University
Abstract
In his account of scientific revolutions, Thomas Kuhn suggests that after a revolutionary change of theory, it is as if scientists are working in a different world. In this paper, we aim to show that the notion of world change is insightful. We contrast the reporting of the discovery of neon in 1898 with the discovery of hafnium in 1923. The one discovery was made when elements were identified by their atomic weight; the other discovery was made after scientists came to classify elements by their atomic number. By considering two instances of the reporting of the discovery of a new chemical element 25 years apart, we argue that it becomes clear how chemists can be said to have been responding to different worlds as a result of the change in the concept of a chemical element. They saw, did, and reported different things as they conducted their research on the new chemical elements.
Keywords World changes  Chemical element  hafnium  neon  Kuhn  scientific revolution
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DOI 10.1007/s10698-019-09348-1
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