Chemistry: A Molecular Approach (3rd Edition)

by Tro, Nivaldo J.

Published by Prentice Hall

ISBN 10: 0321809246

ISBN 13: 978-0-32180-924-7

Chapter 8 - Sections 8.1-8.9 - Exercises - Review Questions - Page 374: 20

Answer

The lettered group number of a main-group element is equal to the number of valence electrons for that element.

Work Step by Step

For example, all the elements of group number 1A has 1 valence electron.

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