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Author Question: An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that all ... (Read 79 times)

kwoodring

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on: Mar 21, 2021
An archaeological sample contains 0.700 g of lead-206 and 2.144 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 1.54 × 10–10/year. What is the age of the sample?

◦ 8.41 × 109 years
◦ 9.03 × 108 years
◦ 2.08 × 109 years
◦ 6.33 × 109 years
◦ None of these are correct.
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Marked as best answer by kwoodring on Mar 21, 2021

ladyjames123

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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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kwoodring

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Reply 2 on: Mar 21, 2021
Excellent

ttt030911

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Reply 3 on: Yesterday
Gracias!

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