SOLUTION: the half-life of radium is approximately 1690 years. A laboratory has 50 milligrams of radium. How long will it take until there will be only 40 milligrams left?
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Question 1052640: the half-life of radium is approximately 1690 years. A laboratory has 50 milligrams of radium. How long will it take until there will be only 40 milligrams left? Answer by josgarithmetic(39630) (Show Source):
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