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OpenStudy (vera_ewing):
What is the half-life of a radioactive material? A. The amount of time it takes for the rate of decay of the material to fall to half of its original value. B. The amount of time it takes for the rate constant to fall to half of its original value. C. The amount of time it takes for half of the material to decay into a different element. D. The amount of time it takes for half of the total time of the reaction to pass.
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OpenStudy (vera_ewing):
@JFraser
OpenStudy (anonymous):
It is C.
OpenStudy (anonymous):
yep it is c
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