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An uranium ore sample contains 1g U^238 and 0.2 g Pb^206. Assume that all Pb ^206 is obtained from U^238. The t1/2 of U^238 is 4.5 ×10^9 years. The age of Uranium ore sample is Option(1) 3× 10^9 (2) 1.5× 10^9 (3) 4×10^9 (4)3× 10^8

Answer» An uranium ore sample contains 1g U^238 and 0.2 g Pb^206. Assume that all Pb ^206 is obtained from U^238. The t1/2 of U^238 is 4.5 ×10^9 years. The age of Uranium ore sample is
Option
(1) 3× 10^9 (2) 1.5× 10^9 (3) 4×10^9 (4)3× 10^8


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