ind7qWhabriasjay ind7qWhabriasjay

30-09-2016
Chemistry

contestada

given a 800 mg sample of thorium-231 decomposes via beta emission with a half life of 25.5 hours, how long would it take, in days, for the sample to decay down to 25 mg?

231 0 231
th -> beta pa
90 -1 91

800 mg/ 25 mg

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mikisha12 mikisha12

30-09-2016

267775678888899442267

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