The Radioactive Substances: Their Properties and BehaviourK. Paul, Trench, Trübner & Company, Limited, 1908 - 301 pagini |
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Pagina viii
... EXPOSED FOR LONG TIME TO RADIUM EMANATION , MEASURED BY ALPHA RAYS 193 29 . • DECAY OF ACTIVE DEPOSIT ON PLATE EXPOSED FOR SHORT TIME TO RADIUM EMANATION , MEASURED BY ALPHA RAYS 193 • 30 . DECAY OF ACTIVE DEPOSIT ON PLATE EXPOSED FOR ...
... EXPOSED FOR LONG TIME TO RADIUM EMANATION , MEASURED BY ALPHA RAYS 193 29 . • DECAY OF ACTIVE DEPOSIT ON PLATE EXPOSED FOR SHORT TIME TO RADIUM EMANATION , MEASURED BY ALPHA RAYS 193 • 30 . DECAY OF ACTIVE DEPOSIT ON PLATE EXPOSED FOR ...
Pagina 48
... exposure M. H. Becquerel made similar experiments with fluorescent salts of uranium after to light , and obtained ... exposed to light or kept in the dark , and in fact , that all uranium salts were equally effective and that it was ...
... exposure M. H. Becquerel made similar experiments with fluorescent salts of uranium after to light , and obtained ... exposed to light or kept in the dark , and in fact , that all uranium salts were equally effective and that it was ...
Pagina 108
... exposed to their action . This phenomenon has been carefully studied by Sir William Crookes , who examined microscopi- cally the surface of the zinc sulphide when exposed to 108 THE RADIOACTIVE SUBSTANCES.
... exposed to their action . This phenomenon has been carefully studied by Sir William Crookes , who examined microscopi- cally the surface of the zinc sulphide when exposed to 108 THE RADIOACTIVE SUBSTANCES.
Pagina 109
Their Properties and Behaviour Walter Makower. cally the surface of the zinc sulphide when exposed to the action of the a rays . The surface was seen to be lit up by numerous bright patches which seemed to flash up and disappear in ...
Their Properties and Behaviour Walter Makower. cally the surface of the zinc sulphide when exposed to the action of the a rays . The surface was seen to be lit up by numerous bright patches which seemed to flash up and disappear in ...
Pagina 117
... exposed to the same rays . This latter plan was adopted by Madame Curie , who was then able to demonstrate by direct experiment that the ẞ particles carried a negative charge with them . The former method was successfully applied by ...
... exposed to the same rays . This latter plan was adopted by Madame Curie , who was then able to demonstrate by direct experiment that the ẞ particles carried a negative charge with them . The former method was successfully applied by ...
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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