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Which British physicist discovered the neutron in 1932, completing the basic trio of subatomic particles?

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Correct answer: James Chadwick

James Chadwick discovered the neutron, which had eluded scientists because it carries no electrical charge. This breakthrough was crucial for the development of nuclear energy and atomic bombs, earning him the Nobel Prize in Physics in 1935. Photo: Los Alamos National Laboratory, Wikimedia Commons, Attribution.

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