Question

Which fact is proved by the following observation in the Rutherford’s ?​

Answer 1

Ernest Rutheord performed an experiment to know the arrangement of electrons within an atom. In this experiment, fast-moving alpha particles were made to fall on a thin gold foil (100 nm thickness). The α-particles are doubly charged helium ions. It was expected that α-particles would be deflected by subatomic particles in the gold atom. Since α-particles were much heavier than protons, he did not expect to see large deflections.