Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074



Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

In which of the following does the central atom obey the octet rule: NO2, SF4, NH3, SO3, ClO2, and ClO2? Are any of these species odd-electron molecules or ions?

Interpretation Introduction

Interpretation: The compounds or ions that obey octet rule of electrons that the central atom has eight electrons around it should be identified. The odd–electron molecules should be identified.

Concept Introduction:

Octet rule: The atoms of main group element tend to combine with other atoms in such a way that each atom has eight electrons in its valence shell, giving it the electron configuration same as a Nobel gas.


Reasons for correct answers:

The Lewis electron dot structure for given molecules are determined by first drawing the skeletal structure for the given molecules, then the total number of valence electrons for all atoms present in the molecules are determined.

The next step is to subtract the electrons present in the total number of bonds present in the skeletal structure of the molecule with the total valence electrons such that considering each bond contains two electrons with it.

Finally, the electrons which got after subtractions have to be equally distributed considering each atom contains eight electrons in its valence shell.

The Lewis structure for shows the electrons surrounding the central atom as follows,

The above Lewis structures clearly shows that the species namely ClO2,ClO

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