Chemistry, 26.07.2019 21:20 braydentillery1221

Amoon rock collected by a u. s. apollo mission is estimated to be 3.80 billion years old by uranium/lead dating. assuming that the rock did not contain any lead when it was formed, what is the current mass of 206pb per 1.270 g of 238u in the rock? the half-life of 238u is t1/2 = 4.47 × 109 years.

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