Results of Firing Alpha Particles at Gold Foil Observation Proportion: Alpha particles went straight through gold foil > 98% Alpha particles went through gold foil but were deflected at large angles = 2% Alpha particles bounced off gold foil = 0.01% 9. What information do the experimental results above reveal about the nucleus of the gold atom? (A) The nucleus contains less than half the mass of the atom. (B) The nucleus is small and is the densest part of the atom. (C) The nucleus contains small positive and negative particles. (D) The nucleus is large and occupies most of the atom's space.

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