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please solve this and show every step, please dont copy and paste from other solutins. 4. Cobalt-60 (t1/2=5.26y) undergoes decay. (a) How many particles are

please solve this and show every step, please dont copy and paste from other solutins.

4. Cobalt-60 (t1/2=5.26y) undergoes decay. (a) How many particles are emitted in 45.5d in a 2.44mg sample? Determine the activity in SI units and Ci

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