- Section B B1 308 This Question Is About The Hypothetical Ma A Give A Possible Isotope Of 129ma 1 Mark B Suppose T 1 (79.91 KiB) Viewed 15 times
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Section B B1. 308 This question is about the hypothetical Ma. a) Give a possible isotope of 129Ma. [1 mark] b) Suppose the absorption of a neutron into its nucleus induces the fission of 129Ma. In a particular fission event of this nature, one of the decay products is ¹4Nd and 4 neutrons are released. Copy and complete the decay equation for this process. + 32 Ma → 144Nd + x + !n + !n + ¡n + In 308 127 There is no requirement to look up the element symbol of the fission fragment labelled X. [2 marks] c) Explain why a neutron can penetrate the nucleus with much less kinetic energy than a proton would require. One mark will be awarded for the quality of your written communication. [3 mark] d) Suppose 32 Ma can also decay spontaneously through ß+ decay. Write out the decay equation for this process. The daughter nucleus can be labelled Z as the element is unknown. [1 mark] e) 12Ma has a half life of 15 minutes. If the activity of the sample is 4.8 kBq at 1pm, what will the activity be on the same day at i. 1.30pm ii. 2.05pm [3 marks]