Question

A substance A, By.crystallises in a face centred cubic (fcc) lattice in which atoms A occupy each corner of the cube and atoms Becuoy the
centres of each face of the cube. Identify the correct composition of the substance A, By
AB3​

Answer 1

Answer:

Text Solution

AB3

A4B3

A3B

Formula cannot be specified

Answer :

A

Solution :

Contribution by atoms A at the corners

=1/8×8=1

Contribution by atoms B at the centre of all the six faces =1/2×6=3

Formula of compound =AB3

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