Element x decays to element y with a half-life of 077 s
Element X decays to element Y with a half-life of 0.77 s. Initially there is a sample of pure X and after 2.31 s there are 7g of Y. What was the mass of the original sample?
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element x decays to element y with a half-life of 077 s initially there is a sample of pure x and after 231 s there are
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