The experiment that confirmed the existence of neutrons was performed
A)before the discovery of the proton.
B)at about the same time as the discovery of the proton.
C)after the discovery of the proton.
D)with the discovery of the first element.

Question

Quizplus · Accepted Answer

The experiment that confirmed the existence of neutrons was performed by James Chadwick in 1932, which was after the discovery of the proton in 1917. Chadwick's experiment involved bombarding beryllium with alpha particles, which produced radiation that did not contain any charge, suggesting the presence of particles with no charge. This led to the discovery of the neutron.

The Experiment That Confirmed the Existence of Neutrons Was Performed