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Title: An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that all ... Post by: fnmw 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. Title: An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that all ... Post by: kennettj on Mar 21, 2021 Content hidden
Title: Re: An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that ... Post by: Nicole Sarabia on Nov 4, 2021 thank you
Title: Re: An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that ... Post by: gmiannotti on Jun 19, 2023 (https://biology-forums.com/gallery/46/6_19_06_23_1_26_28.png)
Half life = 0.693 / k k = 1.537 x 10-10 year Half life = 0.693 / 1.537 x 10-10 = 4.509 x 109 Years Hence answer is option A |