JEE Main & Advanced Chemistry The s-Block Elements / s-ब्लॉक के तत्व Question Bank Alkali Metals

  • question_answer
    Which of the following alkali metals is smallest in size [CPMT 1990]

    A) \[Rb\]

    B) \[K\]

    C) \[Na\]

    D) \[Li\]

    Correct Answer: D

    Solution :

      Element - Li        Na       K        Rb    
    Atomic radius (pm) - 152 186 227 248


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