Explanation If the more electronegative atom is supposed to be the central atom then sharing of electrons between the atoms will be more unsymmetrical as the electrons are tend to get pulled towards more electronegative atom. Accordingly the density of negative charges would be more towards the central atom. This causes the molecule to become unstable as more the symmetrical distribution of electrons more will be the uniformity and stability of the molecule. In accordance with this connotation the less electronegative atom is said to be oriented at centre and drawn so in Lewis structures The molecule...

13th Edition

ISBN: 9781260162035

Author: Raymond Chang Dr., Jason Overby Professor

Publisher: McGraw-Hill Education

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Chapter 9, Problem 9.91QP

Interpretation Introduction

Interpretation:

The reason for less electronegative atom drawn at centre while drawing Lewis structure has to be explained. The exception in the case of H2O and NH3 has to be explained.

Concept Introduction:

Electron dot structure also known as Lewis dot structure represents the number of valence electrons of an atom or constituent atoms bonded in a molecule.

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Chapter 9, Problem 9.90QP

Chapter 9, Problem 9.92QP

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Solution Summary: The author explains the reason for less electronegative atom drawn at centre while drawing Lewis structure. The exceptions are H_2O and N

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