Unit 4 Vocabulary by Mason Wood

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Across
  1. 2. the process that a nucleus splits into smaller parts
  2. 4. isotopes of atoms that have unstable nuclei and emit radiation to attain more stable atomic configuaration
  3. 5. the ability of radiation to pass through matter
  4. 6. the time required for one-half of a radioisotope's nuclei to decay into its products
  5. 7. the difference in mass between a nucleus and its component nucleus
  6. 9. a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter
  7. 10. the positively charged protons and neutral neutrons contained in an atom's nucleus
Down
  1. 1. a particle that has the same mass as an electron but an opposite charge
  2. 3. radiation that is energetic enough to ionize matter it collides with
  3. 8. the number of waves that pass a given point per second