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16 years later, Chadwick died on July 24, 1974 in Cambridge, Cambridgeshire. 

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16 years later, Chadwick died on July 24, 1974 in Cambridge, Cambridgeshire. 

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After his work at the MAUD committee, Chadwick returned to England and was knighted and became master of Gonville, and Caius, Cambridge. In 1958, he retired from his work.

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After his work at the MAUD committee, Chadwick returned to England and was knighted and became master of Gonville, and Caius, Cambridge. In 1958, he retired from his work.

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After World War 1 ended, he returned to England to keep studying under Rutherford at the University of Cambridge where he received a doctorate and was appointed assistant director of research. 

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After World War 1 ended, he returned to England to keep studying under Rutherford at the University of Cambridge where he received a doctorate and was appointed assistant director of research. 

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Chadwick was educated at the University of Manchester where he worked under Ernest Rutherford and earned a master's degree in 1913. 

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Chadwick was educated at the University of Manchester where he worked under Ernest Rutherford and earned a master's degree in 1913. 

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In 1935, Chadwick was appointed a chair in the University of Liverpool and became part of the MAUD committee which was to assess the feasibility of the atomic bomb. 

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In 1935, Chadwick was appointed a chair in the University of Liverpool and became part of the MAUD committee which was to assess the feasibility of the atomic bomb. 

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Later, in 1932, he discovered that when beryllium, when exposed to the bombardment of alpha particles, releasing an unknown radiation that also ejects the protons from the nucleus.

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Later, in 1932, he discovered that when beryllium, when exposed to the bombardment of alpha particles, releasing an unknown radiation that also ejects the protons from the nucleus.

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In 1923, while working with Ernest Rutherford, Chadwick studied the transmutation of alpha particles by bombarding them with alpha particles and investigated the atomic nucleus. 

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In 1923, while working with Ernest Rutherford, Chadwick studied the transmutation of alpha particles by bombarding them with alpha particles and investigated the atomic nucleus. 

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An English physicist who won a Nobel Prize for Physics in 1935 for discovering the neutron. 

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An English physicist who won a Nobel Prize for Physics in 1935 for discovering the neutron. 

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Born on October 20, 1891 in Manchester, England. 

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Born on October 20, 1891 in Manchester, England. 