How might you describe the electron density around an atom?
The common misconception with atoms is that people think they are fully circular. This however is not the case as most of the space in atom is an empty cloud, consisting of electrons in diffuse orbitals.
People tend to think atoms are circular due to the shape of the nucleus and the way the atom is commonly drawn. However, once you get the idea that an atom is mostly empty, you will soon start to understand how it is cloudlike.