Chadwick had an abundance of knowledge he had gained from previous discoveries, which help him discover the neutron. In 1932, Chadwick carried out an experiment in which a sample of Beryllium was bombarded with alpha particles, which caused it to emit this mysterious radiation. He assumed it was gamma rays. He then discovered that this radiation, upon striking Paraffin Wax, would dislodged some of the protons, coming to the conclusion it was gamma rays. Chadwick, however did not believe that gamma rays could account for the protons from the wax. He was convinced that the beryllium was emitting neutrons.
He is also known as the father of modern chemistry proposed the law of conservation of matter. He began the conversation on what an atom was exactly Lavoisier was known for his experimentation skills. One of his favorite
experiments being turing HgO into Hg+O. He used this experiment to
help himself come up with the Law of Conservation. The law states that
matter cannot be made or destroyed. He also hints at the rearrangement
of matter in reactions. Matter rearranged, but never disappeared.
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