samanthasoliergarcia samanthasoliergarcia

20-11-2022
Physics

contestada

An unknown radioactive element decays into non-radioactive substances. It's 520
the radioactivity of a sample decreases by 60 percent. a) What is the
half-life of the element? b) How long will it take a 100 mg sample to
break down to 92 mg?

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