What subatomic particle did Ernest Rutherford discover?
Neutron
Electron
Proton
Positron
Answer
Ernest Rutherford discovered the proton. In his experiments, he bombarded nitrogen nuclei with alpha particles and observed the emission of a subatomic particle which he initially called the "hydrogen atom," but later named the proton.
Discovering the Atomic Frontier: The Remarkable Life of Ernest Rutherford