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Enter the correct isotope symbol in each open square in the figure below, which

ID: 2100060 • Letter: E

Question

Enter the correct isotope symbol in each open square in the figure below, which shows the sequences of decays in the natural radioactive series starting with the long-lived isotope uranium-235 and ending with the stable nucleus lead-207. (Use the format 235U for 235U.)




a.____________                       


b._____________


c._____________


d._____________


e._____________


f._____________


g._____________


h._____________


i._____________


j._____________


k.____________


l._____________


m.____________


n._____________


o._____________


p._____________







Explanation / Answer

J=219 Rn