lodine-131, a radioactive isotope of iodine, has a half-life of 8 days. After 40 days, if 1.5 g of lodine-131 still remains, what is the original amount of iodine-131?

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Ruiwen asked Jul 23, 2022

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lodine-131, a radioactive isotope of iodine, has a half-life of 8 days. After 40 days, if 1.5 g of lodine-131 still remains, what is the original amount of iodine-131?

Chemistry
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Ruiwen asked Jul 23, 2022

by Ruiwen

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12 votes

Answer:

48g

Step-by-step explanation:

5 half-lives have passed. Therefore the amount was 32 times the current amount.

Ryan Amies answered Jul 29, 2022

by Ryan Amies

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