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 - Topical Questions - Page 240a,: 30c

Answer

1 to 3

Work Step by Step

We know that for energy to be absorbed, the energy of the system must increase. Going from 2 to 4 and going from 1 to 3 seem like the same difference; however, more energy is involved when the transition is a ground state transition. Thus, going from 1 to 3 leads to the most energy being absorbed.
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