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Lesson: Bravais Lattices

In this lesson, we will learn how to identify primitive and base-, body-, and face-centered (P, C, I, and F) lattices from symmetry and atom positions.

Worksheet • 2 Questions

Q1:

Why are face-centered cubic (FCC) metals more ductile than body-centered cubic (BCC) metals?

AFCC lattices have more distinct planes of weakness than BCC lattices.
BFCC lattices have longer interatomic distances than BCC lattices.
CFCC lattices have a higher packing density than BCC lattices.
DFCC lattices have weaker metallic bonds between atoms than BCC lattices.
EFCC lattices have a higher coordination number than BCC lattices.

Q2:

Which of the following statements about the 14 Bravais unit cells is incorrect?

AEach unit cell edge is equivalent in length.
BThe unit cell is the simplest repeating unit in the crystal lattice.
CEach unit cell edge connects equivalent points/atoms.
DOpposing faces of a unit cell are parallel.

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Lesson: Bravais Lattices

Worksheet • 2 Questions

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