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Author Question: An archaeological sample contains 0.743 g of lead-206 and 2.145 g of uranium-238. Assume that all ... (Read 600 times)

jparksx

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on: Mar 21, 2021
An archaeological sample contains 0.743 g of lead-206 and 2.145 g of uranium-238. Assume that all the lead now present in the rock came from the radioactive decay of the uranium and that no appreciable amounts of other radioactive nuclides are present in the sample. The decay rate constant for the uranium is 1.540 × 10–10/ year. Determine the half-life of the uranium.

◦ 4.500 × 109 years
◦ 1.067 × 10–10 years
◦ depends on the age of the sample
◦ depends on the organic content of the sample
◦ Two of these are correct.
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Marked as best answer by jparksx on Mar 21, 2021

tashiedavis420

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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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Midnight Flame

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Reply #2 on: Apr 26, 2021
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