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 - 22-6 Concept Assessment - Page 1015: 22-6


The $\mathrm{Cl}$ atom is smaller than the $\mathrm{Br}$ atom. As a result, the central P atom can accommodate only four $\mathrm{Br}$ atoms, as in the tetrahedral $\mathrm{PBr}_{4}^{+}$ ion. However, the central $P$ atom can accommodate four $\mathrm{Cl}$ atoms in case of the tetrahedral $\mathrm{PCl}_{4}^{+}$ ion or six in case of the octahedral $\mathrm{PCl}_{6}^+$ ion.

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