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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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aawais aawais
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2 years ago
A rock contains 0.313 mg of lead-206 for each milligram of uranium-238. The for the decay of uranium-238 to lead-206 is 4.5 × 109 y. The rock was formed ________ y. ago.

▸ 1.41 × 109

▸ 1.08 × 109

▸ 1.39 × 109

▸ 2.00 × 109

▸ 1.56 × 109
Textbook 
General Chemistry: Principles and Modern Applications

General Chemistry: Principles and Modern Applications


Edition: 11th
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finsterchuckfinsterchuck
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2 years ago Edited: 2 years ago, bio_man
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You make an excellent tutor!
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