Jon1024 Jon1024

02-12-2016
Biology

contestada

a substance has a half-life of 100,000 years and an initial mass of 1,000 grams. how many years will pass before only 250 grams of the substances parent material is left?

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Pandalee Pandalee

02-12-2016

I`ll take a gander and say 200,000 years

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