Q. 143.8( 28 Votes )

What is the two dimensional coordination number of a molecule in square close-packed layer?

Answer :

In a two dimensional square closed packed layer, a molecule touches four neighbour atoms. Therefore, 4 is the two dimensional coordinate number of a molecule in square closed packing.

Explanation-In two dimensional square close-packed layer each sphere is in contact with four of its neighbours hence its coordination number is four.


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