General, Organic, and Biological Chemistry: Structures of Life (5th Edition)

Published by Pearson
ISBN 10: 0321967461
ISBN 13: 978-0-32196-746-6

Chapter 4 - Atoms - 4.8 Trends in Periodic Properties - Questions and Problems - Page 140: 4.67

Answer

Indicating the number of valence electrons in each of the following: a. aluminum- 3 b. Group 5A- 5 c. barium- 2 d. F, Cl, Br, and I- 7

Work Step by Step

a. aluminum belongs to 3A group. b. Group 5A has 5 valence electrons. c. barium belongs to 2A group. d. F, Cl, Br and I belong to the 7A group and hence have 7 valence electrons.
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