Which of the Following Did Scientists Learn About the Atom

Multiple Choice

Which of the following did scientists learn about the atom from Rutherford's gold foil experiment?

A) Atoms combine in simple ratios to form compounds.
B) Electrons travel around the nucleus of an atom in concentric circular paths.
C) The mass of an atom and its positive charge are concentrated in the nucleus.
D) The atomic mass of an atom is equal to the number of protons and neutrons in the nucleus.