Chemistry and Chemical Reactivity (9th Edition)

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: 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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