Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 6 - The Periodic Table - 6.1 Organizing the Elements - Chemistry & You: Everyday Matter - Take It Further - Page 163: 1

Answer

In 1829, J. W. Dobereiner organized the elements into groups of triads, 3 elements with similar chemical properties. In addition, he noticed that one element in each triad had properties with values the was midway between the other 2 elements. However, this organization method had one flaw: it couldn't accept newly discovered elements.

Work Step by Step

In 1829, J. W. Dobereiner organized the elements into groups of triads, 3 elements with similar chemical properties. In addition, he noticed that one element in each triad had properties with values the was midway between the other 2 elements. However, this organization method had one flaw: it couldn't accept newly discovered elements.
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