a cubic solid is made of two elements p and q. atoms of q are at the corners and p at the body centre.are the coordination no. of both the element same,what is the formula of the compound. please explain.

Asked by ADITYA KUMAR SINGH | 8th Apr, 2013, 05:14: PM

Expert Answer:

It is given that the atoms of Q are present at the corners of the cube.

Therefore, number of atoms of Q in one unit cell

It is also given that the atoms of P are present at the body-centre.

Therefore, number of atoms of P in one unit cell = 1

This means that the ratio of the number of P atoms to the number of Q atoms, P:Q = 1:1

Hence, the formula of the compound is PQ.

The coordination number of both P and Q is 8.

Answered by  | 9th Apr, 2013, 12:47: PM

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