Chemistry, 18.09.2019 12:00 coxtinam16
1. radioactive decay of 40k atoms in an igneous rock has resulted in a ratio of 25 percent 40k atoms to 75 percent 40ar and 40ca atoms. how many years old is this rock?
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1. radioactive decay of 40k atoms in an igneous rock has resulted in a ratio of 25 percent 40k atoms...
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