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OpenStudy (anonymous):
1. The isotope, Carbon-14 emits beta radiation and has a half live of 5730 years. How long will it take for the amount of radiation this gives off to drop by a factor of 4?
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OpenStudy (mrnood):
do you understand what 'half-life' means?
OpenStudy (anonymous):
dividing by two?
OpenStudy (mrnood):
no it is the time taken for the amount of radiation to fall to half its initial value so after 1 half life it will have half its original the amount left after 1 half life takes the SAME time to decau to half ITS amount so how much of the original is left after 2 half life periods?
OpenStudy (anonymous):
11,460
OpenStudy (jtfan2000):
5730 / 2 = 2865
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