Word: electrons
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Dates: during 1920-1929
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...Robert Andrews Millikan, isolator of the electron (TIME...
...ranks from assistant to professor and co-worker with Michelson in the department of physics. Born in Illinois, 1868, he was educated at Oberlin, Columbia, Berlin, Göttingen. He is well known abroad, has already received many prizes, including the Edison medal, for his work with electrons and ions, is the author of several standard works, particularly The Electron (University of Chicago Press...
...chemical distinction between atoms is governed by the number of charges in the nucleus, which is the same as the number of electrons in its system. Hydrogen, the lightest known element, has one charge and one electron, like the earth and moon...
...ordinary mechanical laws do not account for the stability of the elements under the new theories, for they would not prevent electrons falling into the nucleus. These move in fixed orbits and new ones cannot be created. When atoms are bombarded by free electrons, the electron rebounds or transfers its energy to the atom, in which case there is an emission of light in the spectra. Sir Oliver Lodge, in his installation address as President of the Roentgen Society, London, outlined his own version of atomic theory. The nucleus he believes to be rotating at the speed of light. Surrounding...
Professor Bohr is an international authority on spectra and radio activity and has done valuable work in proving the electron theory of the composition...