Chemistry: Molecular Approach (4th Edition)

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

Chapter 25 - Exercises - Page 1153: 20

Answer

(a) \[~Fe,\text{ }Sc\] (b) \[~Mn\] (c) \[Ti\]

Work Step by Step

(a) The first-row transition metals that have \[+3\] as the highest possible oxidation state are as follows: \[\begin{align} & Fe:\quad \left[ Ar \right]3{{d}^{6}}4{{s}^{2}};\quad \quad F{{e}^{3+}}:\quad \left[ Ar \right]3{{d}^{5}} \\ & Sc:\quad \left[ Ar \right]3{{d}^{1}}4{{s}^{2}};\quad \quad S{{c}^{3+}}:\quad \left[ Ar \right] \\ \end{align}\] (b) The first-row transition metal that has \[+7\] as the highest possible oxidation state is as follows: \[Mn:\quad \left[ Ar \right]3{{d}^{2}}4{{s}^{2}};\quad \quad M{{n}^{7+}}:\quad \left[ Ar \right]\] (c) The first-row transition metal that has \[+4\] as the highest possible oxidation state is as follows: \[Ti:\quad \left[ Ar \right]3{{d}^{2}}4{{s}^{2}};\quad \quad T{{i}^{4+}}:\quad \left[ Ar \right]\]
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