Splitting of the Atom.- Rutherford (Ernest) "Collision of a Particles

Splitting of the Atom.- Rutherford (Ernest) "Collision of a Particles with Light Atoms. I. Hydrogen. II. Velocity of the Hydrogen Atom. III. Nitrogen and Oxygen Atoms. IV. An Anomalous Effect in Nitrogen", in The Philosophical Magazine and Journal of Science, sixth series, vol. 37, pp.537-587, the odd surface stain, ex-library copy with ink-stamps, library cloth-backed boards, light rubbing to extremities, [PMM 411], 1919; and 2 vol. of the same periodical for the year 1921, 8vo (3) *** The first edition, journal issue, of the announcement of the splitting of the atom. In 1911, as a result of bombarding gold foil with alpha particles, Rutherford formulated the hypothesis of the atom's nuclear construction on which all subsequent work in atomic physics and chemistry is based. He observed that while most of the alpha particles passed straight through the foil, some bounced back from it. Rutherford interpreted the bouncing in terms of his hypothesis and determined those that went through had passed through the planetary systems of electrons, while those that bounced back had hit, or interacted with, a nucleus. (PPM) In vol. 42 of Philosophical Magazine appears Chadwick's "The Collisions of [Alpha] Particles with Hydrogen Nuclei", and Rutherford and Chadwick's paper "The Artificial Disintegration of Light Elements".

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