Hurrah, we come to the end of the module! We asked in the beginning about why some substances are harder than others. If the substance is a compound, the strength depends on whether the compound is ionic.

Ionic compounds are quite strong because the force between the positive and the negative ions keeps the structure together.

Next Module

Check out the next module in this series! Carbon & Its Compounds 1

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Next Module

Check out the next lesson in this series! Carbon & Its Compounds 1