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Tag Archives: What is Half-Life

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What is Half-Life? (Chemistry)

ScienceBy William Anderson (Schoolworkhelper Editorial Team)July 4, 2010Leave a comment

Period after which only half of the original number of nuclei in a sample of a radioactive element have not decayed. ex.   half-life for uranium – 238           23892U = 4.6 x 109 years So after 4.6 x 109 years, only one half of the original uranium will be left

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