Physics 30S Final Exam Review-2.pdf
Physics 30S Final Exam Review-2.pdf
Physics 30S Final Exam Review-2.pdf
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<strong>Physics</strong> 40S RRSD <strong>Final</strong> <strong>Exam</strong> – June 2005 Page 1818. Iodine-131 is a radioactive element used in the medical diagnosis and treatmentof thyroid problems. Iodine-131 undergoes simultaneous beta and gamma decayand has a half-life of 8.00 days.a) Write the complete decay equation for iodine-131 [1]b) Complete the table below by entering the amount of iodine-131remaining over 40 days. [1]c) Explain how you obtained data for the table. [1]d) Provide a graph of the theoretical decay of 2.00 g of iodine-131. Plotmass versus time on the plot below. [1]*** End of <strong>Exam</strong> ***