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Chemistry: Principles and Reactions

8th Edition
William L. Masterton + 1 other
ISBN: 9781305079373

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Chapter
Section
BuyFindarrow_forward

Chemistry: Principles and Reactions

8th Edition
William L. Masterton + 1 other
ISBN: 9781305079373
Textbook Problem

Predict the geometry of the following species:

(a) ClF5

(b) XeF4

(c) SiF62-

(d) Pcl5

Interpretation Introduction

(a)

Interpretation:

The geometry corresponding to ClF5 needs to be determined.

Concept introduction:

  • The ideal geometry adopted by various molecules can be predicted based on the valence shell electron pair repulsion (VSEPR) theory.
  • As per the VSEPR model, since the valence electrons surrounding an atom repel each other, the orbitals containing these electrons orient themselves as far apart as possible. Such an orbital arrangement which minimizes repulsion leads to a stable geometry.
Explanation

Chlorine (Cl) and fluorine (F) belong to group VIIA with 7 valence electrons. The most stable Lewis structure for ClF5 is as follows:

Interpretation Introduction

(b)

Interpretation:

The geometry corresponding to XeF4 needs to be determined.

Concept introduction:

  • The ideal geometry adopted by various molecules can be predicted based on the valence shell electron pair repulsion (VSEPR) theory.
  • As per the VSEPR model, since the valence electrons surrounding an atom repel each other, the orbitals containing these electrons orient themselves as far apart as possible. Such an orbital arrangement which minimizes repulsion leads to a stable geometry.
Interpretation Introduction

(c)

Interpretation:

The geometry corresponding to SiF62- needs to be determined.

Concept introduction:

  • The ideal geometry adopted by various molecules can be predicted based on the valence shell electron pair repulsion (VSEPR) theory.
  • As per the VSEPR model, since the valence electrons surrounding an atom repel each other, the orbitals containing these electrons orient themselves as far apart as possible. Such an orbital arrangement which minimizes repulsion leads to a stable geometry.
Interpretation Introduction

(d)

Interpretation:

The geometry corresponding to PCl5 needs to be determined.

Concept introduction:

  • The ideal geometry adopted by various molecules can be predicted based on the valence shell electron pair repulsion (VSEPR) theory.
  • As per the VSEPR model, since the valence electrons surrounding an atom repel each other, the orbitals containing these electrons orient themselves as far apart as possible. Such an orbital arrangement which minimizes repulsion leads to a stable geometry.

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