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 - Page 281e: 71


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Work Step by Step

a) Atomic radius increases down a group because of the bigger number of electrons repelling each other, and due to the screening effect the attractive nuclear force doesn't increase as much. b) This is because the screening effect caused by d orbitals isn't very efficient at reducing effective nuclear charge.
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