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AP Chemistry
2.3 Structure of Ionic Solids
BeginnerMCQConceptual15.1k
Representation of an ionic lattice before and after an applied mechanical stress.
Representation of an ionic lattice before and after an applied mechanical stress.
A student subjects a crystal of sodium chloride, \(\text{NaCl(s)}\), to a mechanical shearing force, causing the crystal to cleave cleanly along a plane as represented in the diagram below. Which of the following claims best explains why ionic solids such as \(\text{NaCl(s)}\) are brittle and fracture when a stress is applied?

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