Ancient Greek Model
Rutherford Greek Model
In 1908 Ernest Rutherford performed an experiment where he shot tiny particles at a sheet of gold foil. Most of the particles pass through. That told him that an atom is mostly empty space.
In 1913 Niels Bohr created a model that consist of a central nucleus surrounded by tiny particles called electrons which are moving so far is that if we saw them in an atom it would look like a blur.
Broglie and Schrodinger
In 1920 Broglie and Schrodinger believed that instead of electrons orbiting the nucleus like planets, they moved like clouds and behave like particles and waves at the same time that were so fast that they look like clouds.