Unit 4: Nuclear Vocab #1

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Across
  1. 2. a form of radiation consisting of an energetic electron
  2. 5. high-energy, short-wavelength electromagnetic radiation emitted by an atomic nucleus
  3. 7. a particle consisting of two protons and two neutrons
  4. 10. the original nuclide in a nuclear decay
  5. 11. expulsion of a positron from an unstable atomic nucleus; a proton is transformed into a neutron
  6. 13. a device used to detect radioactivity in which energetic particles traverse a material that emits ultraviolet or visible light when excited by their passage
  7. 14. the nuclide product of a nuclear decay
  8. 16. an equation that represents the changes that occur during radioactivity and other nuclear processes
  9. 17. badge used to measure radiation exposure, consisting of photographic film held in a small case that is pinned to clothing
Down
  1. 1. energetic electrons emitted by an unstable nucleus
  2. 3. radiation emitted by an unstable nucleus consisting of alpha particles
  3. 4. the ability of radiation to ionize other molecules and atoms
  4. 6. a nuclear particle that has the mass of an electron but carries a 1+ charge
  5. 8. the emission of tiny, invisible, energetic particles from the unstable nuclei of atoms
  6. 9. the ability of a radioactive particle to penetrate matter
  7. 12. a radioactivity detector consisting of a chamber filled with argon gas that discharges electrical signals when high-energy particles pass through it
  8. 15. describes a substance that emits tiny, invisible, energetic particles from the nuclei of its component atoms
  9. 18. the shortest-wavelength, most energetic form of electromagnetic radiation