ottect If you leave some uranium-235 lying around, it will radioactively decay into lead-207. The half-life for this dec

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Ottect If You Leave Some Uranium 235 Lying Around It Will Radioactively Decay Into Lead 207 The Half Life For This Dec 1 (16.89 KiB) Viewed 71 times

ottect If you leave some uranium-235 lying around, it will radioactively decay into lead-207. The half-life for this decay is 704 million years. If we measure the uranium-235 in the oldest rocks on Earth and find that 1/64th of the expected amount is present, we can calculate a minimum age for the Earth. First figure out how many half-lives would have passed to account for 1/64 being left. Then use this number to calculate the age of the rock fand the Earth) Question 5 How old is the rock in years? Enter a number only, no words 4224,000 0/0.5 pts