Nature, Količina 104Sir Norman Lockyer Macmillan Journals Limited, 1919 |
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Zadetki 1–3 od 35
Stran 228
... radium . This afforded a direct experimental method of determining the average life of radium with a result that is in close accord with the value calculated from the rate of emission of a - particles . The position of actinium the main ...
... radium . This afforded a direct experimental method of determining the average life of radium with a result that is in close accord with the value calculated from the rate of emission of a - particles . The position of actinium the main ...
Stran 335
... radium rays . In his work preparatory to the determination of the atomic weight of radium , Hönigschmid ( Wien . Ber . , cxx . , 1617 , 1911 ) used fused quartz evaporating basins for recrystallising large quantities of radium chloride ...
... radium rays . In his work preparatory to the determination of the atomic weight of radium , Hönigschmid ( Wien . Ber . , cxx . , 1617 , 1911 ) used fused quartz evaporating basins for recrystallising large quantities of radium chloride ...
Stran 565
... radium hydrate with one of its isotopes , say mesothorium - 1 , is used , we shall get a precipitate containing barium radium and mesothorium - 1 . The quantities of these two elements precipitated are capable of measurement , and will ...
... radium hydrate with one of its isotopes , say mesothorium - 1 , is used , we shall get a precipitate containing barium radium and mesothorium - 1 . The quantities of these two elements precipitated are capable of measurement , and will ...
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