The Radioactive Substances: Their Properties and BehaviourK. Paul, Trench, Trübner & Company, Limited, 1908 - 301 pagini |
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Pagina 7
... material particles which can be removed by mechanical means , and further , that these particles are charged with elec- tricity since they are removed by an electric field . These carriers are known as ions , and the gas is said to be ...
... material particles which can be removed by mechanical means , and further , that these particles are charged with elec- tricity since they are removed by an electric field . These carriers are known as ions , and the gas is said to be ...
Pagina 24
... material particles projected from the cathode with very high velocities ; moreover , they have been shown to carry with them a negative charge of electricity ; for if the rays are caused to pass through a strong electric field , the ...
... material particles projected from the cathode with very high velocities ; moreover , they have been shown to carry with them a negative charge of electricity ; for if the rays are caused to pass through a strong electric field , the ...
Pagina 33
... materials is studied , it is found that , as a general rule , substances of high density are for the same rays more opaque than those whose density is less ; but the transparency also depends upon the particular rays used . If the ...
... materials is studied , it is found that , as a general rule , substances of high density are for the same rays more opaque than those whose density is less ; but the transparency also depends upon the particular rays used . If the ...
Pagina 43
... material which contains mercury . When the rod is in the cup the mercury is connected to earth and on raising it by a string the mercury is insulated . The connection from the ionizing vessel to the electrometer is made through this ...
... material which contains mercury . When the rod is in the cup the mercury is connected to earth and on raising it by a string the mercury is insulated . The connection from the ionizing vessel to the electrometer is made through this ...
Pagina 49
... materials , such as zinc sulphide . Inspired by this important discovery of M. Becquerel , a search was made by several in- vestigators to find out whether any of the other chemical elements exhibited this new property , and it was not ...
... materials , such as zinc sulphide . Inspired by this important discovery of M. Becquerel , a search was made by several in- vestigators to find out whether any of the other chemical elements exhibited this new property , and it was not ...
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Termeni și expresii frecvente
absorption actinium active deposit ALPHA RAYS aluminium atomic weight barium Becquerel bismuth Boltwood cathode rays centimetres charge carried charged particles chemical considered contained corpuscles crystals Curie and Danne deflected density detected discovery effect electric field electrolysis electrometer electroscope emana experiments exposed fact fluorescence formed Fourth Edition gases gramme of radium heat helium hydrogen Illustrations insulated ionization J. J. Thomson known light LL.D Madame Curie magnetic field matter measured metals method minerals nature negative ions negatively charged obtained passing phenomena Phil pitchblende polonium present pressure produced properties quantity of emanation quantity of radium radiation emitted radio radioactive bodies radioactive elements radioactive substances radium bromide radium chloride radium emanation radium salt rate of decay removed Röntgen rays Rutherford Rutherford and Soddy seen separated shown solution temperature thorium thorium emanation tion transformed tube uranium velocity vessel weight of radium wire