The lone pair in the structure has to be drawn. Concept Introduction: Lone pair: A lone pair is given by a pair of outer most electrons that are not shared with another atom, otherwise called as non bonding pair. These are generally found in the valence shell of atom and are identified by Lewis structure. Pairs of electrons are considered as lone pairs when two electrons are paired and are not participated in chemical bonding. The sum of number of lone pairs and number of bonding electrons equals the total number of outermost electrons around an atom. Steps to draw a lone pair: 1) Determine the exact number of outermost electrons. 2) The formal charge and the valence number of outermost electrons are analyzed and determined. 3) The number of bonds is counted and the actual numbers of electrons that should be lone pairs are determined.

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Chapter 2.5, Problem 5LTS

Interpretation Introduction

Interpretation:

The lone pair in the structure has to be drawn.

Concept Introduction:

Lone pair: A lone pair is given by a pair of outer most electrons that are not shared with another atom, otherwise called as non bonding pair. These are generally found in the valence shell of atom and are identified by Lewis structure. Pairs of electrons are considered as lone pairs when two electrons are paired and are not participated in chemical bonding. The sum of number of lone pairs and number of bonding electrons equals the total number of outermost electrons around an atom.

Steps to draw a lone pair:

1) Determine the exact number of outermost electrons.

2) The formal charge and the valence number of outermost electrons are analyzed and determined.

3) The number of bonds is counted and the actual numbers of electrons that should be lone pairs are determined.

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