solid state

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Across
  1. 2. cell What is the basic repeating unit of a crystal lattice
  2. 4. What type of solid is formed by a lattice of positive ions in a "sea" of electrons
  3. 6. What type of defect involves an equal number of cation and anion vacancies
  4. 8. What number refers to the number of nearest neighbors surrounding an atom or ion
  5. 10. What type of solid is formed by molecules held together by weak intermolecular forces
  6. 14. What property describes the same value in all directions
  7. 15. What type of solid is formed by electrostatic attraction between oppositely charged ions
Down
  1. 1. What type of material conducts electricity under certain conditions
  2. 3. What type of solid has atoms covalently bonded to each other throughout the entire crystal
  3. 5. What type of defect involves missing atoms from lattice sites
  4. 7. What type of defect involves an ion leaving its lattice site and occupying an interstitial site
  5. 9. What property describes different values in different directions
  6. 11. What type of solid has a long-range order
  7. 12. What process increases the conductivity of a semiconductor by adding impurities
  8. 13. What type of solid lacks a long-range order