KVPY Sample Paper KVPY Stream-SX Model Paper-21

  • question_answer
    The correct order of atomic radii is:

    A) \[Nd>Ce>Eu>Ho\]

    B) \[Ho>Nd>Eu>Ce\]

    C) \[Ce>Eu>Ho>Nd\]

    D) \[Eu>Ce>Nd>Ho\]

    Correct Answer: D

    Solution :

    The atomic radii are \[Eu=199\text{ }pm\], \[Ce=183\text{ }pm\], \[Nd=181\text{ }pm\], \[Ho=176\text{ }pm\]


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