Chemistry
Chemistry, 22.03.2021 16:30, stef65

Polonium-209 decays from 200 grams to 12.5 grams in 8 hours. How long is one "half life"?

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Polonium-209 decays from 200 grams to 12.5 grams in 8 hours. How long is one "half life"?...

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