Chemistry 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078021510
ISBN 13: 978-0-07802-151-0

Chapter 10 - Chemical Bonding II - Questions & Problems - Page 457: 10.4

Answer

For bonding-pair vs lone pair, the electrons in a bond are held by the attractive forces exerted by the nuclei of two bonded atoms. Lone pairs have more "spatial distribution" so they take up more space and have greater repulsion.

Work Step by Step

Page 417 under "Molecules in Which the Central Atom Has One or More Lone Pairs" describes it.
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