Rutherford's Gold Foil Experiment helped prove
A) the diameter of a gold atom.
B) the exact charge of an electrons.
C) the exact mass of a gold atom.
D) that the mass of an atom is concentrated in a very small space.
E) the mass to charge ratio of an electron.

Question

Quizplus · Accepted Answer

Rutherford's Gold Foil Experiment helped prove that the mass of an atom is concentrated in a very small space, as he observed that most of the alpha particles passed straight through the foil with a small fraction being deflected. This led him to conclude that atoms contain a small, dense, positively charged nucleus.

Rutherford's Gold Foil Experiment Helped Prove