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16 of 20 A radioactive element has a half-life of 3,000 years. If a sample of this element begins with a mass of 60 grams,

16 of 20 A radioactive element has a half-life of 3,000 years. If a sample of this element begins with a mass of 60 grams, how long would you have to wait for the mass to decrease to 15 grams? A. 3,000 years B. 1,500 years C. 6,000 years D. 12,000 years

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