Our model of the atom with a small central nucleus full of protons and neutrons surrounded by electrons orbitting on energy levels has developed based on the results of different investigations.

In this topic you need to know about the following: -

  • How Dalton, Thomson, Rutherford and Bohr developed the modern model of the atom.
  • How to calculate the size of the atom and the nucleus based on models.
  • Use the arrows below to continue to revise.