The Radioactive Substances: Their Properties and BehaviourK. Paul, Trench, Trübner & Company, Limited, 1908 - 301 pagini |
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Pagina 14
... possible . to measure the sum of the velocities of the positive and negative ions by measurement of the conductivity of dilute solutions of known concentration . In a manner somewhat similar to this it is possible to measure the sum of ...
... possible . to measure the sum of the velocities of the positive and negative ions by measurement of the conductivity of dilute solutions of known concentration . In a manner somewhat similar to this it is possible to measure the sum of ...
Pagina 16
... possible to obtain the ratio of the velocity of the positive ion to that of the negative ion in a known electric field . Although this method of chemical analysis is in the nature of things inapplic- able to the case of gases , it has ...
... possible to obtain the ratio of the velocity of the positive ion to that of the negative ion in a known electric field . Although this method of chemical analysis is in the nature of things inapplic- able to the case of gases , it has ...
Pagina 19
... possible to make any similar calculation , since the discharged ions cannot be collected and their volume estimated as in the above case . It has , however , been shown by Professor J. J. Thomson that the number of ions per c.c. in a ...
... possible to make any similar calculation , since the discharged ions cannot be collected and their volume estimated as in the above case . It has , however , been shown by Professor J. J. Thomson that the number of ions per c.c. in a ...
Pagina 39
... possible to do away with the sulphuric acid damping , and to depend on the resistance offered by the air to the motion of the needle to bring it to rest . The needle is suspended by a fine quartz fibre , so that the sensitiveness is ...
... possible to do away with the sulphuric acid damping , and to depend on the resistance offered by the air to the motion of the needle to bring it to rest . The needle is suspended by a fine quartz fibre , so that the sensitiveness is ...
Pagina 57
... possible eventually to prepare specimens of radium bromide of considerable purity ; but the interesting experiment of isolating radium itself remained still to be tried . Although it is possible to study the properties of radium when in ...
... possible eventually to prepare specimens of radium bromide of considerable purity ; but the interesting experiment of isolating radium itself remained still to be tried . Although it is possible to study the properties of radium when in ...
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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