A cubic solid is made of two elements P&Q. Atoms of Q are at the corners of the cube and P at the body centre. What is the formula of the compound? What are co-ordination numbers of P&Q.

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Detailed Solution

The given cube contains 'P' atoms at centre of body & 'Q' atoms at corners. Therefore the given cube is a "Body centered cube".
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No of 'Q' atoms $= 8 \times \frac{1}{8} = 1$
No of 'P' atoms = 1×1=1
Formula of the compound is PQ.

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