The conclusion from Rutherford's alpha-scattering experiment is that
Answer Details
Rutherford's alpha-scattering experiment led to the conclusion that atoms are mostly empty space with a small, dense, positively charged nucleus. This was based on the observation that when alpha particles were fired at a thin gold foil, most of the particles passed straight through the foil, but a few were deflected at large angles. This indicated that the positive charge of the atom was concentrated in a small, dense nucleus, and that most of the atom was empty space.