While insulators and conductors have very different properties in terms of how they handle electricity, they share a common element:

They are both made up of atoms.

The difference lies in how the electrons in those atoms behave:

* Conductors: Their electrons are loosely bound to the atom and can move freely. This allows electricity to flow easily through them.

* Insulators: Their electrons are tightly bound to the atom and cannot move freely. This prevents electricity from flowing easily through them.

So, both insulators and conductors are made of the same building blocks (atoms), but the way those atoms hold onto their electrons determines their electrical properties.