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10. The half-life of francium is about 1600 years. If a rock initially contains a 2...

10. The half-life of francium is about 1600 years. If a rock initially contains a 2 g of francium, the amount left after 16000 years will be about

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Answer #1

sol- Sol:- By Poinive decay, we have wheje NCt) hag to be find out deco csnstant Noitial sanoyle of substance Ne Now,2 has to

Half- HOİ |Q@s deco cons ant 10 is amouot left

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