Can sodium chloride be categorised as a giant molecular structure

  1. I was attempting this question where I had to say which, out of graphite, diamond and sodium chloride represent a giant molecular structure? The answer is only the first two. Why is the latter excluded?
     
  2. jcsd
  3. Borek

    Staff: Mentor

    What kind of bonds keeps atoms together in each crystal?
     
  4. covalent in first,ionic in last
     
  5. Stemming from that, a molecule is defined as two or more atoms covalently bonded. By definition, ionic bonds are excluded.
     
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