#### 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).

Published by
Pearson

ISBN 10:
0134112830

ISBN 13:
978-0-13411-283-1

The correct answer is (b).

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