The correct formula of the compound nickel (II) perchlorate is to be determined. Concept Introduction: Ionic compound contains cation and anions. In ionic compounds, the sum of positive ions gets canceled with the sum of negative ions and the compound becomes electrically neutral. Combination of two or more atoms in an ion is known as polyatomic ion Polyatomic ions are composed of a group of atoms having an overall charge. If the charges are different then the charge on anion is numerically equal to the subscript for cation and the charge on cation is numerically equal to the subscript for the anion. Combination of two or more atoms in an ion is known as a polyatomic ion.

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Chapter 2, Problem 2KSP

Interpretation Introduction

Interpretation: The correct formula of the compound nickel (II) perchlorate is to be determined.

Concept Introduction:

Ionic compound contains cation and anions.

In ionic compounds, the sum of positive ions gets canceled with the sum of negative ions and the compound becomes electrically neutral.

Combination of two or more atoms in an ion is known as polyatomic ion

Polyatomic ions are composed of a group of atoms having an overall charge.

If the charges are different then the charge on anion is numerically equal to the subscript for cation and the charge on cation is numerically equal to the subscript for the anion.

Combination of two or more atoms in an ion is known as a polyatomic ion.

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