   Chapter 20, Problem 67E

Chapter
Section
Textbook Problem

# The xenon halides and oxides are isoelectronic with many other compounds and ions containing halogens. Give a molecule or ion in which iodine is the central atom that is isoelectronic with each of the following.a. xenon tetroxideb. xenon trioxidec. xenon difluorided. xenon tetrafluoridee. xenon hexafluoride

(a)

Interpretation Introduction

Interpretation: The ion or molecule, having iodine as the central atom, that is isoelectronic with each of the given compounds is to be stated.

Concept introduction: Two compounds are said to be isoelectronic if they contains same number of valence electrons.

Total number of valence electrons in a compound is equal to the sum of valence electrons present in each atom of that compound.

To determine: The ion or molecule, having iodine as the central atom, that is isoelectronic with each of the given compounds.

Explanation

The compound XeO4 and IO4 ion are isoelectronic.

The molecule xenon tetroxide (XeO4) is made of four oxygen (O) atoms and single xenon (Xe) atom. The number of valence electrons in xenon is 8 whereas the number of valence electrons in oxygen atom is 6 . Hence, the total number of valence electrons is,

Xe+4O=(8+4×6)e=32e

An ion IO4 is made of four oxygen atoms and single iodine atom

(b)

Interpretation Introduction

Interpretation: The ion or molecule, having iodine as the central atom, that is isoelectronic with each of the given compounds is to be stated.

Concept introduction: Two compounds are said to be isoelectronic if they contains same number of valence electrons.

Total number of valence electrons in a compound is equal to the sum of valence electrons present in each atom of that compound.

To determine: The ion or molecule, having iodine as the central atom, that is isoelectronic with each of the given compounds.

(c)

Interpretation Introduction

Interpretation: The ion or molecule, having iodine as the central atom, that is isoelectronic with each of the given compounds is to be stated.

Concept introduction: Two compounds are said to be isoelectronic if they contains same number of valence electrons.

Total number of valence electrons in a compound is equal to the sum of valence electrons present in each atom of that compound.

To determine: The ion or molecule, having iodine as the central atom, that is isoelectronic with each of the given compounds.

(d)

Interpretation Introduction

Interpretation: The ion or molecule, having iodine as the central atom, that is isoelectronic with each of the given compounds is to be stated.

Concept introduction: Two compounds are said to be isoelectronic if they contains same number of valence electrons.

Total number of valence electrons in a compound is equal to the sum of valence electrons present in each atom of that compound.

To determine: An ion or molecule in which iodine is the central atom and that is isoelectronic with xenon tetrafluoride.

(e)

Interpretation Introduction

Interpretation: The ion or molecule, having iodine as the central atom, that is isoelectronic with each of the given compounds is to be stated.

Concept introduction: Two compounds are said to be isoelectronic if they contains same number of valence electrons.

Total number of valence electrons in a compound is equal to the sum of valence electrons present in each atom of that compound.

To determine: An ion or molecule in which iodine is the central atom and that is isoelectronic with xenon hexafluoride.

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