The Radioactive Substances: Their Properties and BehaviourK. Paul, Trench, Trübner & Company, Limited, 1908 - 301 pagini |
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Pagina 6
... considered later . Again , there are certain substances , said to be " radioactive " and endowed with similar properties , which appear to continually emit radiations capable of rendering gases in their neighbourhood conductors . The ...
... considered later . Again , there are certain substances , said to be " radioactive " and endowed with similar properties , which appear to continually emit radiations capable of rendering gases in their neighbourhood conductors . The ...
Pagina 11
... considered as being formed by the ionizing rays at a constant rate , and a certain proportion of them is being removed by the current in every second . Now as the electromotive force is increased , more and more ions will be re- moved ...
... considered as being formed by the ionizing rays at a constant rate , and a certain proportion of them is being removed by the current in every second . Now as the electromotive force is increased , more and more ions will be re- moved ...
Pagina 22
... considered , but without entering into details the general method will be understood from the above account . Proceeding in this way , J. J. Thomson found 34 × 10-10 electrostatic units for the charge carried by the negative ion ...
... considered , but without entering into details the general method will be understood from the above account . Proceeding in this way , J. J. Thomson found 34 × 10-10 electrostatic units for the charge carried by the negative ion ...
Pagina 48
... considered as established . exposure M. H. Becquerel made similar experiments with fluorescent salts of uranium after to light , and obtained photographic impressions on photographic plates wrapped in black paper and exposed to the ...
... considered as established . exposure M. H. Becquerel made similar experiments with fluorescent salts of uranium after to light , and obtained photographic impressions on photographic plates wrapped in black paper and exposed to the ...
Pagina 63
... considered to be very near the true value for the atomic weight of radium . A more recent determination gave the value of the atomic weight of radium as 226.5 . SPECTRUM OF RADIUM As has been mentioned , it has been found impossible to ...
... considered to be very near the true value for the atomic weight of radium . A more recent determination gave the value of the atomic weight of radium as 226.5 . SPECTRUM OF RADIUM As has been mentioned , it has been found impossible to ...
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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