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How Is the Half-Life of a Radioactive Parent Isotope Defined

Question 21

Multiple Choice

How is the half-life of a radioactive parent isotope defined?


A) the time it takes for half of the parent isotope to decay to daughter isotope
B) half the time it takes for the parent isotope to completely decay to daughter isotopes
C) the time for parent isotopes to undergo half the decay steps to produce a daughter isotope
D) half of the average rate of decay of the parent isotope

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