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English physicist who discovered the neutron in 1932 and received the Nobel Prize for Physics in 1935. That discovery provided a new tool for inducing atomic disintegration, since neutrons, being electrically uncharged, could penetrate undeflected into the atomic nucleus.
- The Editors of Encyclopaedia Britannica
Sir James Chadwick, CH, FRS (20 October 1891 – 24 July 1974) was an English physicist who was awarded the 1935 Nobel Prize in Physics for his discovery of the neutron in 1932. In 1941, he wrote the final draft of the MAUD Report, which inspired the U.S. government to begin serious atom bomb research efforts.
- 20 October 1891, Bollington, Cheshire, United Kingdom
- Physics
One hypothesis was that this could be high-energy electromagnetic radiation. In 1932, however, James Chadwick proved that it consisted of a neutral particle with about the same mass as a proton. Ernest Rutherford had earlier proposed that such a particle might exist in atomic nuclei.
Nov 27, 2018 · Learn how James Chadwick discovered the neutron and revised the cloud model of the atom. Find out how his work led to the atomic bomb and radioactivity.
- Chris Deziel
Learn how James Chadwick proved the existence of neutrons in 1932, based on the experiments of Rutherford and Joliot-Curie. Find out how his discovery revolutionized the understanding of the atomic structure and led to the Niels Bohr model.
In 1932, Chadwick made a fundamental discovery in the domain of nuclear science: he proved the existence of neutrons – elementary particles devoid of any electrical charge. In contrast with the helium nuclei (alpha rays) which are charged, and therefore repelled by the considerable electrical forces present in the nuclei of heavy atoms, this ...
Chadwick's discovery of the neutron was the final piece in understanding the atomic puzzle and sparked a revolution leading to the nuclear age and the creation of nuclear weapons. [4] © Maya Kuppermann.
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