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Author Question: Radon-222 has a half-life of 3.8 days. How long would it take for a sample to decay to 18% of its ... (Read 39 times)

dbose

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on: Mar 21, 2021

Question 1

Plutonium-239 is a component of waste from nuclear reactors and has a half-life of 24,100 years. If 5.00 g of Pu-239 was disposed of when you were born, what mass of the sample would remain on your 80th birthday?

◦ 4.99 g
◦ *

Question 2

Radon-222 has a half-life of 3.8 days. How long would it take for a sample to decay to 18% of its original mass?

◦ 9.4 days
◦ *
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by dbose on Mar 21, 2021

frogdreck123456

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Reply #1 on: Mar 21, 2021
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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dbose

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Reply 2 on: Mar 21, 2021
Excellent

essyface1

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Reply 3 on: Yesterday
Gracias!

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