Chemistry: The Central Science (13th Edition)

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

Chapter 23 - Transition Metals and Coordination Chemistry - Exercises - Page 1033: 23.16a


6 electrons in valence orbital

Work Step by Step

Ground state electronic configuration of Co is $[Ar]3d^{7}4s^{2}$. It loses three electrons to form $Co^{3+}$ ion with electronic configuration of $[Ar]3d^{6}$
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