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MMLU-Pro / 3568 / A chemist has a piece of foil that is approximately 5 × 10^4 atoms thick. If an…

Problem

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question

A chemist has a piece of foil that is approximately 5 × 10^4 atoms thick. If an alpha particle must come within 10^-12 cm of a nucleus for deflection to occur, what is the probability that an alpha particle will be deflected, assuming the nuclei are not directly behind one another? Assume that the area of one atom is 4 × 10^-16 cm^2.

category

chemistry

options

  1. 1 in 7500
  2. 1 in 3000
  3. 1 in 10,000
  4. 1 in 1000
  5. 1 in 5000
  6. 1 in 1250
  7. 1 in 1500
  8. 1 in 2000
  9. 1 in 2500
  10. 1 in 6000

src

stemez-Chemistry

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