Question

Which experiment led to the idea that atoms contained a nucleus?

O A. Niels Bohr's photoelectric effect experiment
O B. Ernest Rutherford's gold foil experiment
O C. J. J. Thomson's cathode ray experiment
O D. Robert Millikan's oil drop experiment

Answer 1

B. Ernest Rutherford's gold foil experiment

Step-by-step explanation:

That experiment showed a space with the tiny dense spot, referred to as the nucleus. The experiment involved shooting alpha particles (helium nuclei) at a very thin sheet of gold and then observing.