I need help with this one question. Phys. Science!?

The Geiger-Marsden experiment was an experiment in which alpha particles were shot at a film of gold foil. If J.J. Thompson's model had been correct, then electrons would have been scattered in a "jelly" like substance with no bundles of charged particles within the atom, meaning the alpha particles would have passed straight through the film of atoms with no deflections. Instead, a very few number of alpha particles were deflected back at the particle emitter, indicating that there was something in the middle of the atoms deflecting them. This is, of course, the nucleus, which forms the backbone of the atom as we understand it today.