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 240c: 73b

Answer

$1s^22s^22p^63s^23p^63d^{10}4s^24p^6$

Work Step by Step

We write the electron configurations, using the information that we learned over the course of the chapter. The Bromide ion has one more electron than neutral Bromine. Recall, we start at 1s and move up: $1s^22s^22p^63s^23p^63d^{10}4s^24p^6$
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