Plutonium-239 can undergo nuclear fission in many ways. Which equation correctly shows a possible fission reaction for plutonium-239?
01n+94239Pu→54134Xe+40103Zr+301n{}^{1}_{0}\text{n} + {}^{239}_{94}\text{Pu} \rightarrow {}^{134}_{54}\text{Xe} + {}^{103}_{40}\text{Zr} + 3 {}^{1}_{0}\text{n}01n+94239Pu→54134Xe+40103Zr+301n
01n+94239Pu→54134Xe+40104Zr+301n{}^{1}_{0}\text{n} + {}^{239}_{94}\text{Pu} \rightarrow {}^{134}_{54}\text{Xe} + {}^{104}_{40}\text{Zr} + 3 {}^{1}_{0}\text{n}01n+94239Pu→54134Xe+40104Zr+301n
01n+94239Pu→54134Xe+41103Nb+301n{}^{1}_{0}\text{n} + {}^{239}_{94}\text{Pu} \rightarrow {}^{134}_{54}\text{Xe} + {}^{103}_{41}\text{Nb} + 3 {}^{1}_{0}\text{n}01n+94239Pu→54134Xe+41103Nb+301n
01n+94239Pu→54135Xe+40102Zr+201n{}^{1}_{0}\text{n} + {}^{239}_{94}\text{Pu} \rightarrow {}^{135}_{54}\text{Xe} + {}^{102}_{40}\text{Zr} + 2 {}^{1}_{0}\text{n}01n+94239Pu→54135Xe+40102Zr+201n
170 exam-style questions on CIE IGCSE Physics 5.1.2a Composition of the nucleus and isotopes. Each one has a worked solution and a mark scheme showing where the marks go.