Study of the Separation of Ra-D from Rs-E. Comparison of Different Methods.

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Authors
Burkholder, Jerry L.
Issue Date
1963
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Thesis
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en_US
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Abstract
All elements with atomic number greeter than eighty-three(bismuth) are radioactive. Some of these elements have short half-lives and some have long half-lives. |In radioactive decay, the element which decays is called the parent, and the one which is formed is called the daughter. If the parent has a much longer half-life than its daughter, a special kind of equilibrium called secular equilibrium can be established. Such an equilibrium is formed between the isotopes of lead and bismuth, in which lead-210(Ra.-D) has a half-life of 22.3 years and bismuth-210(Ra-E) has a half-life of 5.0 days.
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Creighton University
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