Chemistry and Chemical Reactivity (9th Edition)

by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.

Published by Cengage Learning

ISBN 10: 1133949649

ISBN 13: 978-1-13394-964-0

Chapter 7 The Structure of Atoms and Periodic Trends - Study Questions - Page 281e: 70

Answer

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Work Step by Step

Ionization energy decreases down a group because of more electrons causing a screening effect and lowering the effective nuclear charge for the outermost electrons, therefore making it easier to remove them.

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