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7I can not get this one right, can you give me a hand? The decay rate, k, for a particular radioactive element is 2.8%, where

7I can not get this one right, can you give me a hand?

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The decay rate, k, for a particular radioactive element is 2.8%, where time is measured in years. Find the half-life of the element. The half-life isyears . (Round to one decimal place as needed.)

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