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JEE Main & Advanced Sample Paper JEE Main Sample Paper-18

  • question_answer
    Xenon crystallizes in face centre cubic lattice and the edge of the unit cell is 620 pm. The radius of xenon atom is

    A)  219.20 pm        

    B)  438.5 pm

    C)  265.5 pm            

    D)  536.94 pm

    Correct Answer: A

    Solution :

     For fee lattice;\[r=\frac{1}{2\sqrt{2}}\times a,\] where a = 620 pm On solving r = 219.20 pm.


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