Earnest Rutherford's Performed Experiments With Radioactive Alpha Particles

Earnest Rutherford had performed experiments with radioactive alpha particles and discovered that solid minerals have holes. The holes in the atoms allowed most of the alpha particles to pass through, but some to bounce back. He suggested the atom has a nucleus in the middle of the atom, which had positively charged protons. He discovered the protons were positives because of the rule of magnetism, opposites attract, the positive charged particles sprung away from the positive protons in the nucleus. A class preforms an experiment using cardboard cutouts and Chinese marble to determine if they can predict the figure of the nucleus (cutouts) of the atoms. Using the marbles, as the alpha particles, they observe how the marble ricochets after