General Chemistry: Principles and Modern Applications (10th Edition)

Published by Pearson Prentice Hal
ISBN 10: 0132064529
ISBN 13: 978-0-13206-452-1

Chapter 22 - Chemistry of the Main-Group Elements II: Groups 18, 17, 16, 15, and Hydrogen - 22-2 Concept Assessment - Page 994: 22-2


Based on the number of electron pairs around I (the central atom), VSEPR notation suggests that the ions have different shapes. $\mathrm{ICl _{2}^{+}}$ (VSEPR notation, $\mathrm{AX}_{2} \mathrm{E}_{2}$ ) has a tetrahedral electron-group geometry and a bent molecular shape. $\mathrm{ICl _{2}^{-}}$ (VSEPR notation, $\mathrm{A} \mathrm{X}_{2} \mathrm{E}_{3}$ ) has a trigonal-bipyramidal electron-group geometry and a linear molecular shape.

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