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In two half-lives, how much of a 400-gram sample of a radioactive element will remain un-decayed?
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In two half-lives, how much of a 400-gram sample of a radioactive element will remain un-decayed?
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Nov 24, 2022
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In two half-lives, how much of a 400-gram sample of a radioactive element will remain un-decayed?
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Answer:
100 grams
Explanation:
1/2 * 1/2 = (1/2)² = 1/4
1/4 * 400 = 100
Thelandog
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Nov 30, 2022
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