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Why is the particle model useful in understanding the nature of matter?

Answer and explanation

Correct answer: Because it shows that matter is made of particles

The direct answer is option A. The particle model says that matter is made of very small particles. These particles are separated by spaces, are always moving, and attract one another; their arrangement and motion help explain solids, liquids and gases. Option A is correct because it states the basic idea of the model. Option B is wrong because a model does not itself change colour. Option C is wrong because the particle idea applies to solids, liquids and gases, not only metals. Option D is wrong because particles do not remove mass; matter still has mass. The model is a simple way to explain observable properties using invisible particles. Memory cue: matter is particle-based; state depends on particle spacing and motion.

Related tags

ChemistryNature-Of-MatterClass-11

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