MODULE 1 UNIT 3 Assignment Part E 1. Have a good look at the smoke detector you have at home. If you don’t have one, get the information from someone who has one (and think of getting yourself one). (2 marks each) a) What’s the name of the radioactive isotope used in the detector? (You should be able to get this name from the description included inside the detector.) - 241 Am is the type of radioactive isotope used in the detector. b) How many neutrons do the atoms of this radioactive element have? - The atoms of the radioactive element have 146 neutrons. 4 marks 2. Consult an encyclopaedia or a reference book and find one use, not previously mentioned in this module, for radioisotopes. In your own words
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