Chapter 2, Problem 2.8YT

Interpretation Introduction

Interpretation:

A molecule of ${\text{CF}}_{\text{4}}$ is shown decomposed into its two Vs. The bond dipoles along the two $\text{C-F}$ bonds in each V and the net dipole resulting from their vector addition are to be drawn.

Concept introduction:

A polar covalent bond arises when atoms having different electronegativities are bonded together and the resulting bond dipole points toward the more electronegative atom. Fluorine is more electronegative than carbon. The thick arrows are equal in magnitude and point in opposite directions. ${\text{CF}}_{\text{4}}$ has no net dipole moment and is therefore nonpolar. The bonds those are in the plane of paper are represented by a straight line. A wedge signifies a bond, which points toward you and comes out of the plane of the paper. A dash signifies a bond which points away from you and goes behind the plane of the paper. One V is in the plane of the paper whereas the other is perpendicular to the plane of the paper. The Vs must open in opposite directions.