Rutherford's Gold Foil Experiment and Results Are Given in the Following

Rutherford's gold foil experiment and results are given in the following figure (Rutherford's Gold Foil Experiment: Rutherford directed alpha particles at a thin sheet of gold foil.Most of the particles passed through the foil,but a small fraction was deflected,and a few even bounced backward. ) (Figure 2.6,page 51;Tro P3e) .
Which of the following statements best explains the experimental results?

A) Positively and negatively charged particles are uniformly distributed in the atom.
B) Most of the atom's mass and all of its negative charge are contained in a small core.
C) Most of the atom's mass and all of its positive charge are contained in a small core.
D) All of the atom's mass and all of its positive and negative charges are contained in a small core.

Correct Answer:

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