The atom and the Bohr theory of its structure : an elementary presentation (1923)
Holst, Helge, b. 1871 · London ; Copenhagen : Gyldendal · leaf 90
any light to be seen, but the glass wall opposite the negative electrode (the cathode) glows with a greenish tint (fluorescence). Ifa small metal’plate is put in the tube between the cathode and the glass wall, a shadow is cast on the wall, just as if light were produced by rays, emitted from the… … 4 that they consist of particles which are hurled from the cathode with great velocity in straight lines ; they light the wall by their collisions with it. There was soon no doubt as to the correctness of Crookes’ theory. The cathode rays are evidently particles of negative elec- tricity, which by…
Atomic theory · Atomic structure · Bohr, Niels, 1885-1962
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