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Talja [164]
3 years ago
7

The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass

. Starting with 195 grams of a radioactive isotope, how much will be left after 6 half-lives?
Use the calculator provided and round your answer to the nearest gram.
Mathematics
1 answer:
Shkiper50 [21]3 years ago
5 0

Half of the starting amount remains after 1 half-life. So after 6 half-lives, the starting amount is halved 6 times, meaning that a 195 g sample would decay down to

(195 g)/2^6 = 195/64 g ≈ 3 g

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