Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 9 - Problems - Page 390: 9.15


See explanation with answer below.

Work Step by Step

A) Group 5, because they're 5 electrons on the outermost shell. 1s2 2s2 2p3 B) Group 4 because it is 1s2 2s2 2p2.
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