Q64P - Chemistry: Molecular Nature Of Matter And Change

Question

Are molecules present in a sample of BaF₂? Explain.

Step-by-Step Solution

Answer

There are no molecules present in a sample of BaF₂ because it is an ionic compound.

Step1: Define ionic compounds

An ionic compound is a chemical compound made up of ions kept together by electrostatic forces known as ionic bonding. The net charge of ionic compounds is neutral (zero), although it contains both positively and negatively charged ions known as cations and anions.

Step 2: Find the type of compound

The sample of BaF₂containsbarium cations (metals) and fluoride anions.Because cations and anions create a strong electrostatic interaction between them to form ionic bonds. Therefore, the sample of BaF₂ has no molecules.