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Alpha particles have low penetration depth

They are stopped by:
  • by a few centimeters of air
  • a sheet of paper
  • the skin
Therefore, alpha emitters are not too dangerous unless ingested.

Ancestors (11)

  1. Alpha particle
  2. Alpha decay
  3. Type of radioactive decay
  4. Radioactive decay
  5. Nuclear reaction
  6. Nuclear physics
  7. Particle physics
  8. Physics
  9. Natural science
  10. Science
  11. Home