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Posted: **Fri May 06, 2022 10:59 am**

: 99 A Drug Tagged With 23 Tc Half Life 6 05 H Is Prepared For A Patient If The Original Activity Of The Sample Was 1 (35.15 KiB) Viewed 27 times

99. A drug tagged with 23 Tc (half-life = 6.05 h) is prepared for a patient. If the original activity of the sample was 1.2×104 Bq, what is its activity (R) after it has been on the 43 shelf for 3.0 h? Bq