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Crystalline and Amorphous Solid

In a crystal ...

Question

In a crystal formed by A and B, A atoms are arranged at ccp and B atoms are arranged at all edge corners. Give the formula.

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Solution

1. As B occupies edge corner, so number of B = $\frac{1}{8} \times 8 = 1$
Number of A = 1

2. So chemical formula is AB.

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