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what is the name for the length of time of a decay process ? how can this be used to calculate the amount of a radioactive element compared to its original amount?
Half-life is the period of time it takes for a substance undergoing decay to decrease by half. [ Half-lives are very often used to describe quantities undergoing exponential decay—for example radioactive decay—where the half-life is constant over the whole life of the decay. ]
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They are known to consist of helium-4 nuclei (nuclei with two protons ... A nuclear equation is a symbolic representation of a nuclear reaction ... Ex. Plutonium 239 emits an alpha particle when it decays, write the balanced nuclear equation. ... Ex. Protactinium 234 undergoes beta decay. Write the balanced nuclear ...
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