Question: Also called the Rutherford gold foil experiment, this New Zealand born British physicist directed the Geiger-Marsden experiment and later was known as the father of nuclear physics. Who was he?
Sentence (from "Discovery of the neutron"): The essential nature of the atomic nucleus was established with the discovery of the neutron by James Chadwick in 1932 and the determination that it was a new elementary particle, distinct from the proton.
Relevant evidence: No