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OpenStudy (anonymous):
100 grams of a radioactive substance goes through 3 half lives. How much remains afterward?
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OpenStudy (ghazi):
12.5 gms
OpenStudy (anonymous):
how'd you get that?
OpenStudy (ghazi):
well without applying any equation ...just use fundamental concept....that is after one half life it will be 50gms after second half life it will be half of 50 that is 25gms and after third half life it will be half of 25 that is 12.5gms
OpenStudy (ghazi):
clear?
OpenStudy (ghazi):
anytime
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