This scientist led a series of experiments that used high-speed lightweight atoms called alpha particles to bombard very thin pieces of gold foil. Some of the alpha particles went straight through the foil but a few alpha particles bounced back. The scientist used this information to hypothesize that an atom must be made of a tiny dense nucleus surrounded by a region of mostly empty space. Which scientist did this? A. J. J. Thomson B. John Dalton C. Ernest Rutherford D. Neils Bohr
