ch12

Card Set Information

Author:
Anonymous
ID:
308333
Filename:
ch12
Updated:
2015-09-22 19:42:24
Tags:
chem
Folders:
chem
Description:
chem
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  1. The smallest repeating unit in a crystal lattice that has the characteristic symmetry of the solid
    unit cell
  2. The corners of the unit cell in a crystal lattice
    lattice points
  3. A solid, regular array of positive and negative ions
    crystal lattice
  4. A unit cell having eight identical points at the corners of a cube
    cubic unit cell
  5. (bcc)
    body-centered cubic
  6. (fcc)
    face-centered cubic
  7. (pc)
    primitive cubic
  8. the primitive cubic arrangement has ______ net atom within the unit cell.
    one net atom
  9. what is the formula for a (pc) unit cell net atom?
    (8 corners of a cube)(1/8 of each corner atom within a unit cell) = 1 net atom per unit cell for (pc)
  10. what is the formula for (bcc) unit cell net atom?
    (8 corners of a cube)(1/8 of each corner atom within a unit cell)+(1 lattice point in center) = 2 net atom per unit cell for (bcc)
  11. what is the formula for a (fcc) unit cell net atom
    (6 faces of a cube)(1/2 of an atom within a unit cell)+1 for the 8 coners= 4 net face centered atoms within a (fcc) unit cell

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