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Mendeleev and Moseley: The Principal Discoverers of the Periodic Law

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George Gorin

Oklahoma State University, Stillwater, OK 74078

J. Chem. Educ., 1996, 73 (6), p 490

DOI: 10.1021/ed073p490

Publication Date (Web): June 1, 1996

Section:

History, Education, and Documentation

Abstract

It has been asserted that as many as six persons should be regarded as "co-discoverers" of the Periodic Law (of the Chemical Elements), but it is also generally acknowledged that their respective contributions were not equal. The prevalent consensus recognizes D. I. Mendeleev's contribution as preeminent, but there is considerable disagreement about the merits of the contributions by J. L. Meyer, J. A. R. Newlands, and others. By the analysis presented in the article, the "system" proposed by Meyer in 1864 must be regarded as superior to Newlands', although Mendeleev himself did not agree with that assessment. In 1912-14 Moseley made a very significant experimental and theoretical contribution to the question, and he has a more valid claim to be regarded as a "co-discoverer" than any of Mendeleev's contemporaries.

Keywords (Audience):

General Public

Keywords (Domain):

History / Philosophy

Keywords (Subject):

Periodicity / Periodic Table

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This article has been cited by 1 ACS Journal articles (1 most recent appear below).

Theoretical Basis and Correct Explanation of the Periodic System: Review and Update
W. H. Eugen Schwarz, Ronald L. Rich
Journal of Chemical Education2010 87 (4), 435-443
- Theoretical Basis and Correct Explanation of the Periodic System: Review and Update
  W. H. Eugen Schwarz, Ronald L. Rich
  Journal of Chemical Education2010 87 (4), 435-443
  Long-standing questions on the theoretical basis of the periodic system have been answered in recent years. A specific type of periodicity is imposed on all elements by the main groups just before and after the noble gasses. The upper np shells of these ...
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