emmanew emmanew

04-11-2016
Chemistry

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A certain radioactive nucleus undergoes exponential decay with a half-life of 10 days. The fraction of the initial sample that remains after 2 half lives?

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MartianManiac MartianManiac

14-11-2016

after 1 half life you have 50 percent remaining
after 2 half lifes you have 25 percent remaining

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