Proceedings of the Royal Society of London: Containing papers of a mathematical and physical character. Series A, Volume 97Harrison and Son, 1920 Publishes research papers in the mathematical and physical sciences. Continued by: Proceedings. Mathematical and physical sciences; and, Proceedings. Mathematical, physical, and engineering sciences. |
Contents
| 1 | |
| 23 | |
| 44 | |
| 66 | |
| 80 | |
| 99 | |
| 110 | |
| 124 | |
| 259 | |
| 265 | |
| 273 | |
| 286 | |
| 307 | |
| 321 | |
| 349 | |
| 374 | |
| 130 | |
| 152 | |
| 160 | |
| 172 | |
| 181 | |
| 191 | |
| 199 | |
| 218 | |
| 225 | |
| 240 | |
| 401 | |
| 413 | |
| 435 | |
| 450 | |
| i | |
| vii | |
| xi | |
| xvii | |
Other editions - View all
Common terms and phrases
a-particle accelerating potential difference acid alternating current ampère apparatus applied potential difference argon b₁ Balmer lines Balmer series bombarded c₁ carbon carbon dioxide cathode centre coefficient collecting electrode collisions colloid constant critical velocity crystallise current due curve shows cylinder deflection deflexion density detected direct current distance due to hydrogen due to radiation effect electrolyte electrometer energy equation experiments filament formula frequency fuze gases gauze given helium high vacuum hydrogen atom hydrogen molecule investigation ionisation ionisation potential ionisation which begins katharometer lines mass measured mercury metal method micelle nitrogen nucleus observed oxygen particles Pitot tube plane plate platinum platinum surface positive current positive ions potential difference pressure produced by electrons radius Rate of evol secondary spectrum shown sinh solution sphere striking point sulphur Table temperature thickness tube V₁ value 11.8 volts viscosity volts volume wave-length wire zero
Popular passages
Page 282 - possible existence of an atom of mass 1 which has zero nucleus charge. Such an atomic structure seems by no means impossible. On present views, the neutral hydrogen atom is regarded as a nucleus of unit charge with an electron attached at a distance, and the spectrum of hydrogen is ascribed to the movements of this distant electron.
Page 282 - Its external field would be practically zero, except very close to the nucleus, and in consequence it should be able to move freely through matter. Its presence would probably be difficult to detect by the spectroscope, and it may be
Page 282 - nuclei and possibly also one H nucleus. In the one case, this entails the possible existence of an atom of mass nearly 2 carrying one charge, which is to be regarded as an isotope of hydrogen. In the other case, it involves the idea of
Page 282 - some conditions, however, it may be possible for an electron to combine much more closely with the H nucleus, forming a kind of neutral doublet. Such an atom would have very novel
Page 39 - ions would in practice be counterbalanced by the effect of the greatly enhanced electrostatic potential of the aggregate in attracting water molecules and other material, so that such an aggregate would become a ¿heavily hydrated micelle. This great hydration would usually more than offset the extra mobility expected, and the result would be a colloidal
Page 282 - intention of the writer to make experiments to test whether any indication of the production of such atoms can be obtained under these conditions. The existence of such nuclei may not be confined to mass 1 but may be possible for masses 2, 3, or 4, or more, depending on the possibility of
Page 164 - of Aldehyde.—Aldehyde may be converted into alcohol by passing the vapour, together with hydrogen, over either copper or nickel (Sabatier) ; but in presence of the latter metal, probably owing to the special affinity of nickel for the carbonyl group, the aldehyde is prone to undergo decomposition into carbon monoxide and
Page 261 - 2 , where a was a constant which had different values, depending on whether the K or L series of characteristic radiations were measured. It was supposed that this constant depended on the number and position of the electrons close to the nucleus.
Page 261 - experiments of Geiger and Marsden could not be reconciled with any law of central force, except the inverse square. The nuclear constitution of the atom was thus very strongly supported by the experiments on scattering of
Page 170 - transformation of carbon monoxide and steam into carbon dioxide and hydrogen. Whereas, however, iron oxide at a suitable temperature causes the action to proceed almost to the point of equilibrium, copper, even at its optimum temperature, does not effect more than