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caption

Sir James Chadwick (1891-1974), English physicist. Educated in Manchester, Chadwick worked under Rutherford on research mainly with alpha particles (helium nuclei). He used data gained in these experiments to show that the positive charge of a nucleus is the same as its atomic number. In 1932, he was able to re-interpret an experiment by the Joliot-Curies, which he saw as evidence for the existence of the neutron. Chadwick's own experiments confirmed this. This discovery of the neutron allowed a massive advance in knowledge of atomic nuclei. Neutrons are the most useful particle for initiating nuclear reactions. In 1935 he received the Nobel Prize for Physics.

headline Photo Researchers ftp March 2011

created date 2011-03-24

credit EAST NEWS

source Science Source

byline Science Source

original transmission reference 9N1879

weight 1,3MB

size 24cm x 34cm by 300dpi

keywords - Show

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