Page 15 - Radiochemistry and nuclear chemistry
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Radiochemistry and Nuclear Chemistry
FIG. 1.2. The three naturally occurring radioactive decay series and the man-made neptunium series. Although
239pu (which is the parent to the actinium series) and 244pu (which is the parent to the thorium series) have been
discovered in nature, the decay series shown here begin with the most abundant long-lived nuclides.
