Chapter 22, Problem 7E

Interpretation Introduction

(a)

Interpretation:

The probable geometric structure of $Xe{O}_2$ is to be determined using VSEPR theory.

Concept introduction:

• Valence shell electron pair repulsion theory (VSEPR) predicts the geometry of the molecules depending on the number of bond pair of electrons and number of lone pair of electrons.
• Electron pair geometry includes both bonded atoms and lone pairs, while molecular geometry only considers the bonded atoms.
• The geometries corresponding to different steric number is shown −
Steric number = number of bond pairs +number of lone pairs

	VSEPR GEOMETRIES
Steric number	0 lone pairs	1 lone pair	2 lone pairs	3 lone pairs	4 lone pairs
2	Linear
3	Trigonal planar	Bent
4	Tetrahedral	Trigonal pyramidal	Bent
5	TrigonalBipyramidal	Seesaw	T-shape	Linear
6	Octahedral	Square pyramidal	Square planar	T-shape	Linear

Interpretation Introduction

(b)

Interpretation:

The probable geometric structure of $Xe{O}_4$ is to be determined using VSEPR theory.

Concept introduction:

• Valence shell electron pair repulsion theory (VSEPR) predicts the geometry of the molecules depending on the number of bond pair of electrons and number of lone pair of electrons.
• Electron pair geometry includes both bonded atoms and lone pairs, while molecular geometry only considers the bonded atoms.
• The geometries corresponding to different steric number is shown −
Steric number = number of bond pairs +number of lone pairs

	VSEPR GEOMETRIES
Steric number	0 lone pairs	1 lone pair	2 lone pairs	3 lone pairs	4 lone pairs
2	Linear
3	Trigonal planar	Bent
4	Tetrahedral	Trigonal pyramidal	Bent
5	TrigonalBipyramidal	Seesaw	T-shape	Linear
6	Octahedral	Square pyramidal	Square planar	T-shape	Linear

Interpretation Introduction

(c)

Interpretation:

The probable geometric structure of $Xe{F}_3^{+}$ is to be determined using VSEPR theory.

Concept introduction:

• Valence shell electron pair repulsion theory (VSEPR) predicts the geometry of the molecules depending on the number of bond pair of electrons and number of lone pair of electrons.
• Electron pair geometry includes both bonded atoms and lone pairs, while molecular geometry only considers the bonded atoms.
• The geometries corresponding to different steric number is shown −
Steric number = number of bond pairs +number of lone pairs

	VSEPR GEOMETRIES
Steric number	0 lone pairs	1 lone pair	2 lone pairs	3 lone pairs	4 lone pairs
2	Linear
3	Trigonal planar	Bent
4	Tetrahedral	Trigonal pyramidal	Bent
5	Trigonal Bipyramidal	Seesaw	T-shape	Linear
6	Octahedral	Square pyramidal	Square planar	T-shape	Linear