Describe thomson’s “plum pudding” model of the atom, and then explain how the results of rutherford’s gold foil experiment resulted in a change to the atomic model.

Thomson saw the atom to be a spherical cloud of positive proton matter with electrons dispersed throughout it. Then the gold foil experiment is when Rutherford shot alpha particles at a sheet of gold foil and when there was deflection he concluded there was a dense part in the center of an atom with he called the nucleus made up of neutrons and protons.