Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 6 - Electronic Structure of Atoms - Exercises: 6.68a

Answer

The $3p$ orbital is higher in energy than the $3s$ orbital.

Work Step by Step

*Remember: The further from the nucleus an orbital is, the higher its energy is. Therefore, taken from the information that the average distance from the nucleus of a $3s$ electron in a chlorine atom is smaller than that of a $3p$ electron, the $3p$ orbital is higher in energy than the $3s$ orbital.
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