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  • 04-06-2021
  • Mathematics
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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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Аноним Аноним
  • 04-06-2021

Answer:

100 grams

Step-by-step explanation:

1/2 * 1/2 = (1/2)² = 1/4

1/4 * 400 = 100

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