Chemistry: Molecular Approach (4th Edition)

Published by Pearson
ISBN 10: 0134112830
ISBN 13: 978-0-13411-283-1

Chapter 8 - Self-Assessment Quiz: Q3

Answer

The correct answer is (b).

Work Step by Step

Selenium has 34 electrons. Filling these electrons in the orbital sequentially, we get the configuration as : $1s^22s^22p^63s^23p^64s^23d^{10}4p^4$ So, the correct answer is (b).
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