The English physicist,Sir James Chadwick
Numéro d’image : 11827725
| The English physicist,Sir James Chadwick,1891- 1974. Educated in Manchester,Chadwick then 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 | |
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