Thallium-208 has a half-life of 3 minutes. How long will it take 120 g of thallium-208 to decay so that 15.0 g of the thallium-208 remains? Group of answer choices 6 minutes 3 minutes 9 minutes 12 minutes
Added by Lisa B.
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The half-life of a radioactive substance is the time it takes for half of the substance to decay. In this case, the half-life of thallium-208 is given as 3 minutes. Show more…
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