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  5. The Solid State / ठोस प्रावस्था

12th Class Chemistry The Solid State / ठोस प्रावस्था

  • question_answer 36)
    A cubic solid is made of two elements P and Q. Atoms of Q are at the corners of the cube and P at the body-center. What is the formula of the compound? What are the coordination numbers of P and Q? 

    Answer:

    Number of P atoms per unit cell = 1 (within the body) x 1 = 1 Number of Q atoms per unit cell = 8 (at corners) Formula of the compound is PQ. For body centred cubic, coordination numbers of both P and Q are 8.  


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