Why is a model of the atom useful even though no one can see an individual atom?

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Question

Why is a model of the atom useful even though no one can see an individual atom?

Accepted Answer

It explains observations and allows new predictions to be tested — Award 1 mark. A model is judged by how well it accounts for evidence, not by whether it is a picture of the real thing.

Answer

It removes the need to carry out any experiments

Answer

It shows exactly what an atom looks like

Answer

It makes atoms visible under an ordinary microscope

Answer

It explains observations and allows new predictions to be tested

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