Bethany observes a white crystal that is cube shaped under a microscope. Model of Crystal Structure
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Based on this observation, Bethany thinks the crystal could be sodium chloride, or table salt. Because the crystal has an extended structure, she
knows that sodium chloride is not a molecule. Bethany uses gray and white spheres, representing the atoms in sodium chloride, to make a model
of the crystal's most likely structure, as shown.
a. Provide two reasons why the model accurately represents sodium chloride. Support your reasons with evidence from the model.