Chemistry (4th Edition)

Published by McGraw-Hill Publishing Company
ISBN 10: 0078021529
ISBN 13: 978-0-07802-152-7

Chapter 6 - Key Skills Problems - Page 273: 6.1

Answer

$\therefore$ $\left[Kr \right]$ is the Nobel Gas Core for Mo.

Work Step by Step

The Atomic Number of Mo is 42. The electronic configuration of Mo will be $[Kr] 4d^5 5S^1$ $\therefore$ $\left[Kr \right]$ is the Nobel Gas Core for Mo.
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