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Sir James Chadwick Experiment
It was discovered that Beryllium, when attacked by alpha particles, it gives off a very energetic stream of radiation -
Sir James Chadwick Observations
Chadwick discovered a new particle and called it a neutron. He did experiments with the radiation and got a result that it had no charge or energy. -
Sir James Chadwick Explanation of Observation
Chadwick said this radiation as being composed of particles with a normalelectrical charge and the mass of a proton. This particle became known as the neutron. -
Sir James Chadwick Model