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The diagram on the left represents a sample of a radioactive element. The diagram on the right represents the same sample 270 y later. How

The diagram on the left represents a sample of a radioactive element. The diagram on the right represents the same sample 270 y later. How long does it take for 99% of a 100.0 g sample of the element to decay? Enter a numeric value for the time omitting the units of years. Use two significant figures

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