Chapter 8.11, Problem 1PPB

Interpretation Introduction

Interpretation:

The Lewis structure of the ${\text{NS}}_2$ molecule is to be represented.

Concept introduction:

The structure used to show the bonding between atoms and a lone pair of electrons of the molecule, is known as the Lewis structure.

The rules for drawing the Lewis structure are as follows:

The skeletal structure of the compound is drawn, in which the less electronegative element is placed as the central atom and it is surrounded by substituent atoms.

The total number of valence electrons for the compound is determined.

Subtract two electrons for each bond in the skeletal structure, from the total number of valence electrons, to know the remaining number of electrons.

Complete the octet for each terminal atom by placing a pair of electrons from the remaining electrons.

If any of the electrons are left after completing the octet of the terminal atoms, place the remaining electrons as pairs on the central atom.

If the central atom contains less than $8$ electrons, move a pair of electrons from a terminal atom to form a double or triple bond between the terminal atoms and the central atom.