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Type: Multiple-Choice
Category: Nuclear Chemistry
Level: Grade 9
Tags: half-life
Author: kariftw
Last Modified: 2 years ago

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Nuclear Chemistry Question

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Grade 9 Nuclear Chemistry

After three half-lives, how much of a 400-gram sample of radioactive uranium remains?
  1. 5 g
  2. 133.33 g
  3. 50 g
  4. 25 g
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