The existence of a neutron

  title={The existence of a neutron},
  author={J. Chadwick},
  journal={Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences},
  • J. Chadwick
  • Published 1932
  • Chemistry
  • Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences
§ 1. It was shown by Bothe and Becker that some light elements when bombarded by α-particles of polonium emit radiations which appear to be of the γ-ray type. The element beryllium gave a particularly marked effect of this kind, and later observations by Bothe, by Mme. Curie-Joliot and by Webster showed that the radiation excited in beryllium possessed a penetrating power distinctly greater than that of any γ-radiation yet found from the radioactive elements. In Webster’s experiments the… Expand
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