Years later I would hear of atoms, too small to be seen by men.

I believe it is the simple fact that all things are made of atoms.

Could he be made from some new and different kind of atom?

In this case, we can think of the atom as having two ground states.

Every material is made up of atoms which are very small parts.

In 1979 he led a team that took the first photo of a single atom.

In other words, it cannot change the nature of an atom.

Read this article to learn how to make a model of an atom.

At the level of individual atoms, things are really quite random.

In chapter 1 we saw how all matter is made up of atoms.