In the sodium chloride crystal, each Na+ ion is surrounded by Cl- ions and each Cl- ion by …………. Na+ ions,

Q. In the sodium chloride crystal, each Na+ ion is surrounded by Cl- ions and each Cl- ion by …………. Na+ ions,

  1. five, five
  2. six, six
  3. three, three
  4. six, five

Answer: six, six

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