history of the atomic model

Dalton created the solid sphere model.

It says that atoms are spheres and cannot be broken down any further.

JJ Thompson created the plum pudding model

It says that atoms are spheres. But there are protons and electrons floating around inside

Ernest Rutherford created the nuclear model

It says that electrons orbit around a positively charged nucleus

Niels Bohr created the Bohr model

It says that electrons are arranged in shells around the nucleus

Chadwick discovered neutrons