Question

19. (i) What is the co-ordination number of Na+ in
NaCl crystal ?
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Answer 1

Answer:

Six

The coordination number of sodium is 6. Likewise, six sodium ions immediately surround each chloride ions, making the coordination number of chloride also equal to 6. Because the formula unit of sodium chloride displays a 1:1 ratio between the ions, the coordination numbers must be the same.

Answer 2

Answer:

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