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Author Question: The half life of a specific Tc-99m is 6 hours. How much of an 192 mg sample will have decayed after 30 hours? (Read 135 times)

naturalchemist

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on: Mar 24, 2020

Question 1

The half life of a specific radionuclide is 8 days. How much of an 80 mg sample will be left after 24 days?
◦ 10 mg
◦ 2.7 mg
◦ 20 mg
◦ 40 mg

Question 2

The half life of a specific Tc-99m is 6 hours. How much of an 192 mg sample will have decayed after 30 hours?
◦ 186 mg
◦ 32 mg
◦ 160 mg
◦ 6 mg
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Marked as best answer by naturalchemist on Mar 24, 2020

nathang24

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Reply #1 on: Mar 24, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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naturalchemist

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Reply 2 on: Mar 24, 2020
YES! Correct, THANKS for helping me on my review

bdobbins

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Reply 3 on: Yesterday
Excellent

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