medical technician is working with the four samples of radionuclides listed in the table below. Initially, each sample contains 5.00 µmol of the radionuclide. st, order the samples by decreasing initial radioactivity. Then calculate how long it will take for the amount of radionuclide in each sample to decrease to 1/8 the initial amount. time for amount of initial radioactivity radionuclide to decrease to 1/8 of initial amount radionuclide sample symbol half-life 122 I 53 4.0 minutes |(choose one) v O minutes A 201 T1 81 O hours B 73.0 hours |(choose one) v 179 Ta 73 O years 2. years (choose one) v 125 I 53 O days D 60.0 days |(choose one) v (choose one) 1 (highest) 2 4 (lowest)

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.