Products of the Uranium Fission. Radioactive Isotopes of Iodine and Xenon

Radioactive iodines resulting from the uranium fission have been further studied, with results which in addition to confirming those of previous investigators, establish the following active substances as products of the uranium fission. $\{ \to \to \}\{{\mathrm{I}}^{{>}_{131}} 6.6 \mathrm{hr}. {\mathrm{Xe}}^{{>}_{131}} 9.5 \mathrm{hr}.\mathrm{Cs} \mathrm{}(?\left)\mathrm{}\right\}\{ \to \}\left\{ {\mathrm{Xe}}^{{>}_{131}} 4.3 \mathrm{day}\mathrm{Cs} \mathrm{}\right(?\left)\mathrm{}\right\}$ The 4.3-day xenon is produced by the decay of the 22-hour iodine. The 6.6-hour iodine is either a direct fission product, or the daughter of an active tellurium of half-life less than 1 minute.