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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2010

  • question_answer
    The number of atoms contained in a fee unit cell of a monoatomic substance is

    A)  1               

    B)  2

    C)  4               

    D)  6

    Correct Answer: C

    Solution :

     In a fee unit cell, the number of corner atoms\[=8\times \frac{1}{8}=1\] (\[\because \]Each corner is shared with 8 other unit cells) The number of face atoms\[=6\times \frac{1}{2}=3\] Thus, the total number of atoms per unit cell \[=1+3=4\]


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