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A cubic solid is made to two elements P and Q. Atoms Q are the corners of the cube and P at the body centre. What is the formula of the compound ? What are the coordination numbers of P and Q? |
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Answer» Solution :This STRUCTURE is CsCl type structure. The FORMULA of the compound will be PQ. In this structure, P is at the body centre of the cube having Q atoms at its corners. Thus, the coordination number of P is 8. When we extend the cube in three DIMENSIONS, it can be seen that coordination number of Q is ALSO EIGHT. Thus, Formula of compound = PQ Coordination number of P = 8, Coordination number of Q = 8. |
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