Recall: Rutherford's Gold Foil Experiment involved bombarding a gold foil with alpha particles. A fluorescent screen was set around the gold foil, which the alpha particles hit whenever they passed through the gold foil.
Rutherford's experiment with alpha particle scattering by gold foil established that:
a. protons are not evenly distributed throughout an atom
b. protons are 1840 times heavier than electrons
c. electrons have a positive charge
d. electrons have a negative charge
e. atoms are made of protons, neutrons, and electrons
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