Chemistry 12th Edition

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

Chapter 9 - Chemical Bonding I - Questions & Problems - Page 405: 9.41


Please see the work below.

Work Step by Step

According to the octet rule, an atom must have 8 electrons to fill its outermost shell to form bonds. But as we know that first period elements H and He require only 2 electrons to fill their respective outermost shell, hence this octet rule mainly applies to second period.
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