Chemistry: Molecular Approach (4th Edition)

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

Chapter 8 - Self-Assessment Quiz: Q9

Answer

The correct answer is (c)

Work Step by Step

The electronc configuration of $Fe$ is $[Ar] 3d^6 4s^2$. So, $Fe^{2+}$ has two less electrons; hence its electronic configuration is $Fe$ is $[Ar]4s^0 3d^6 $ **Note, the electrons are taken out of the 4s sub shell before the 3d sub shell.
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