A3.5 gram sample of a radioactive element was formed in a 1960 explosion of an atomic bomb at johnson island in the pacific test site. the half-life of the radioactive element is 28 years. how much of the original sample will remain in the year 2030? show your work.
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A3.5 gram sample of a radioactive element was formed in a 1960 explosion of an atomic bomb at johnso...
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