The formula for the given ionic compounds is to be determined. Concept introduction: An ion is an atom that has a net positive or negative charge. The loss of one or more electrons from an atom yields a cation, an ion with a net positive charge. An anion is an ion whose net charge is negative due to an increase in the number of electrons. An ionic compound is formed by the combination of cation and anion. The smallest whole number ratio in which cations and anions combine to form a neutral substance is indicated by the formula of the ionic compound. While writing theformula for the ionic compound, if the charge on the cation and that on the anion aresame, they combine in 1 : 1 ratio. While writing the formula for the ionic compound, if the charge on the cation and that on the anion arenot same, then the charge of the cation is written as the subscript of the anion and the charge of the anion is written as the subscript of the cation.

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Chapter 2, Problem 77QP

Interpretation Introduction

Interpretation:

The formula for the given ionic compounds is to be determined.

Concept introduction:

An ion is an atom that has a net positive or negative charge.

The loss of one or more electrons from an atom yields a cation, an ion with a net positive charge.

An anion is an ion whose net charge is negative due to an increase in the number of electrons.

An ionic compound is formed by the combination of cation and anion.

The smallest whole number ratio in which cations and anions combine to form a neutral substance is indicated by the formula of the ionic compound.

While writing theformula for the ionic compound, if the charge on the cation and that on the anion aresame, they combine in 1:1 ratio.

While writing the formula for the ionic compound, if the charge on the cation and that on the anion arenot same, then the charge of the cation is written as the subscript of the anion and the charge of the anion is written as the subscript of the cation.

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