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A radioactive element has a single half-life of 20 days.How long will it take for the sample of this element to only have remaining 50% of the original amount?

Sagot :

If the radioactive element has a half life of 20 days, and the remaining material is 50%, then the answer would be 20 days.

It is because, in a single half-life of an element, 50% of its original is going to undergo decay per half-life period. In this case, it takes 20 days for the element to decay to 50%.