Question

Why do scientists use models to study atoms?

Answer 1

Well because atoms are extremely small!

Explanation:

Atoms are extremely small to see and require the use of an electron microscope. Even with that, all you can see will be this:

To make more sense of atoms, scientists have developed models of atoms that will make it easier to visualize and understand them better. An extremely common example is this:

As you can see here, it makes it much more easier to visualize and study the atom.

However, I don't think that even scientists have agreed on what an atom really looks like.