 ... half value in about four days. The constant radioactivity of thorium is maintained by the production of this material at a constant rate. Both the rate of production of the new material and the rate of decay of its activity appear to be independent...  Journal of the Chemical Society - Page 858by Chemical Society (Great Britain) - 1902Full view - About this book
 | 1903 - 914 pages
...chemical condition of the system. The Thx further possesses the property of exciting radio-activity in surrounding inactive matter, and about 21 per cent,...that it is the same as the excited radio-activity caused by the thorium emanation, which has been shown to be produced by Thx. There is evidence that... | |
 | 1902 - 890 pages
...decay of its activity appear to be independent of the physical and chemical condition of the system. The ThX further possesses the property of exciting...Its rate of decay and other considerations make it appear probable that it is the same as the excited radioactivity produced by the thorium emanation,... | |
 | Mary J. Nye - 1983 - 700 pages
...decay of its activity appear to be independeimt of the physical and chemical condition of time system. The ThX further possesses the property of exciting...surrounding inactive matter, and about 21 per cent. of time total activity ummder ordinary circunmstammces is derived fromn this source. Its rate of decay... | |
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