Chemistry: Molecular Approach (4th Edition)

Published by Pearson
ISBN 10: 0134112830
ISBN 13: 978-0-13411-283-1

Chapter 8 - Exercises: 6

Answer

Periodic law was based on the observation that properties of the elements recur when they are arranged on the basis of increasing atomic mass. Later quantum mechanical theory explained why properties of elements recur and why certain elements have similar properties.

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