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You have 64 grams of a radioactive kind of strontium. If its half-life is 6 hours, how much will be left after 3 hours?

User Nichole
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Answer: 48 grams

Explanation:

The half-life of an element refers to the amount of time that it takes for half of it to decay.

For instance, if the half life is 2 hours and the element weighs 12 g, the element will only weigh 6g after 2 hours.

The half-life of the above is 6 hours, in 3 hours therefore, it would only have lost of the half that it would have lost in 3 hours which means it would have lost only a quarter.

= 64 * ( 1 - 1/4)

= 48 grams

User FeanDoe
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