Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 5 - Electron Configurations and the Periodic Table - Questions for Review and Thought - Applying Concepts - Page 240f: 126f



Work Step by Step

For this problem, we are asked to determine whether the electrons are in the ground or the excited state. To do this, we look at their configurations and see if they represent the way that we would normally add electrons to shells. This is not possible, for the 3s orbital should still come after the 2p orbital.
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