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Author Question: The greatest radiation exposure for Americans comes from which of the following? (Read 27 times)

Shelles

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on: Mar 21, 2021

Question 1

The Cs-131 nuclide has a half-life of 30. years. After 139 years, about 3.0 grams remain. The original mass of the Cs-131 sample is closest to

◦ 149 g
◦ 37 g
◦ 74 g
◦ 260 g
◦ 89 g

Question 2

The greatest radiation exposure for Americans comes from which of the following?

◦ medical x-rays
◦ nuclear power plants
◦ electrical transmission wires
◦ industrial waste
◦ a combination of the natural causes of radiation including cosmic rays
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by Shelles on Mar 21, 2021

Kaytorgator

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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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Shelles

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Reply 2 on: Mar 21, 2021
Excellent

miss_1456@hotmail.com

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Reply 3 on: Yesterday
Wow, this really help

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