Word: elements
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Dates: during 1940-1949
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Swarming through the pile in billions of billions, these neutrons stir up a storm of unrest among the atoms of every element in it. Some are turned into atoms of different chemical elements, some into different isotopes of the same element. Nearly all are "hot," shooting out rays and energy. Every element is made radioactive...
...Every element and compound can be tagged in this way. Within a few years, tracers should be: 1) marking the progress of raw materials through industrial processes, 2) "banding" bacteria as if they were robins, 3) even following the motion of water deep underground...
...Bill Jack. But they definitely planned to put Jack himself under wraps, go conventional on public relations. Rasped B.C.: "One of the most unfortunate things in Jahco was its having Bill Jack as public relations man." Nothing was said of the fact that this "unfortunate thing" was one big element in making the Jahco baby so good a buy for Milner and friends, a nice sale for partners Jack & Heintz...
...isotopes of an element have the same chemical properties. They differ only in the number of neutrons their nuclei contain...
...problem was how to denature plutonium, produced by elaborate equipment from the mixture of U-235 and U-238. Competent physicists guessed that the only substance which could denature plutonium effectively would be a nonexplosive isotope of plutonium itself. A different chemical element would not do, for it could be separated by a comparatively simple chemical process...