A sample started with 100 atoms of Element X. Sample X has a Half-Life of 5 years. If there are only 6 atoms of Element X left in the sample, how old is the sample, and how many Half-Lives have occurred? To answer the question, select the age of the sample AND the number of Half-Lives that have occurred.
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A sample started with 100 atoms of Element X. Sample X has a Half-Life of 5 years. If there are only...
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