The reason for N C l 3 is pyramidal while B F 3 is trigonal planar but both has three bond is to be identified. Concept Introduction: Determination of shape using VSEPR theory: 1) The Lewis structure of the molecule is drawn. The representation of valence shell electrons around the atom is known as Lewis structure or Lewis dot structure. Electrons are represented as a dot in Lewis structures, a single dot represents unpaired electron and paired of dots represents paired electrons. 2) The electron pairs surrounding the central atom are counted and the electron pairs are arranged with minimum repulsion. Thus arrangements of electron pairs are determined. 3) The positions of other atoms are determined. 4) The molecular structure is then identified.

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Chapter 11, Problem 95CE

Interpretation Introduction

Interpretation:

The reason for NCl3 is pyramidal while BF3 is trigonal planar but both has three bond is to be identified.

Concept Introduction:

Determination of shape using VSEPR theory:

1) The Lewis structure of the molecule is drawn.

The representation of valence shell electrons around the atom is known as Lewis structure or Lewis dot structure. Electrons are represented as a dot in Lewis structures, a single dot represents unpaired electron and paired of dots represents paired electrons.

2) The electron pairs surrounding the central atom are counted and the electron pairs are arranged with minimum repulsion. Thus arrangements of electron pairs are determined.

3) The positions of other atoms are determined.

4) The molecular structure is then identified.

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