In Rutherford's Gold Foil Experiments, the Observation of Particles Being

Multiple Choice

In Rutherford's gold foil experiments, the observation of particles being reflected back directly was due to:

A) alpha particles being deflected off orbiting electrons in gold atoms.
B) alpha particles being deflected off neutrons scattered in gold atoms.
C) alpha particles causing the disintegration of the nuclei of the gold atoms.
D) alpha particles being deflected off protons present in the gold atoms nuclei.
E) alpha particles being deflected off dense electron clouds surrounding the nuclei.