Solid State Chemistry

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Across
  1. 2. One common example of network solids
  2. 3. It exists as a pure element at room temperature in three different forms: graphite (the most stable form), diamond, and fullerene
  3. 4. The most important of network covalent solids,which consists of extended arrays of covalently bonded silicon and oxygen atoms
  4. 8. Which element has a non-polar (covalent) bond?
  5. 10. What substance is a hydrogen-bonded?
  6. 14. What type of cubic unit cell has one atom per unit cell?
  7. 17. What solids include diamond, quartz, many metalloids, and oxides of transition metals and metalloids?
  8. 19. What type of crystal usually consists of molecules at the lattice points of the crystal?
  9. 20. What type of cubic unit cell has a packing efficiency of 74%?
  10. 21. What type of solid often adopt cubic closest packed crystal structures?
  11. 22. an ordered array of points describing the arrangement of particles that form a crystal
  12. 24. What type of cubic unit cell has the coordination number 8?
Down
  1. 1. in what type of solids the arrangement of particles is not in an orderly fashion
  2. 5. What hole is formed by a planer triangle of touching spheres capped by a simple sphere lying in the dip between them?
  3. 6. How many categories of solids are there?
  4. 7. In what type of solid particles are arranged in an orderly fashion?
  5. 8. What type of crystal structure consists of alternating positively-charged cations and negatively-charged anions?
  6. 9. What solids are hard and brittle, with extremely high melting and boiling points, but their conductivity and hardness vary?
  7. 11. What type of crystal consist of metal cations surrounded by a "sea" of mobile valence electrons?
  8. 12. What hole lies between two triangles of spheres on adjoining layers?
  9. 13. at what temperature most elements are solid?
  10. 15. The only element that crystallizes in a simple cubic unit cell
  11. 16. Which type of substance particles are close together and organized?
  12. 18. How many types of cubic unit cells are there?
  13. 23. What type of network crystal consists of atoms at the lattice points of the crystal, with each atom being covalently bonded to its nearest neighbor atoms?