(a) Complete the following radioactive reaction:
{}^{\square}_{\square}\mathrm{X}\longrightarrow{}^{\square}_{\square}\mathrm{Y}+{}^{4}_{2}\mathrm{He}\longrightarrow{}^{234}_{91}\mathrm{Z}+{}^{0}_{-1}\mathrm{e}(b) Uranium is available in two forms U-235 and U-238. Which of the two isotopes of Uranium is more fissionable?
(a) {}^{238}_{92}X\longrightarrow{}^{234}_{90}Y+{}^{4}_{2}He\longrightarrow{}^{234}_{91}Z+{}^{0}_{-1}e
(b) U-235 is more fissionable because only fast neutrons can cause fission of U-238, whereas slow neutrons can trigger fission of U-235.
More ICSE Easy level questions
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Copy and complete the nuclear reaction by filling in the blanks.
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