Worksheet: Lattice Type from Spacing Ratios

In this worksheet, we will practice determining the crystal system or Bravais lattice of a crystal from the ratios of spacings from successive reflections.


In a face-centered cubic ionic lattice, cations of element M occupy one-half of the tetrahedral holes between anions of element L. What is the formula of this material?

  • A M L 2
  • B M L
  • C M L 3 2
  • D M L 2 3
  • E M L 2

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