Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2004

  • question_answer
    Gradual addition of electronic shells in the noble gases causes a decrease in their

    A)  ionisation energy

    B)  atomic radius

    C)  boiling point

    D)  density

    Correct Answer: A

    Solution :

    Due to close shell electronic configuration, the inert gases have higher ionisation potential than any other elements of the period and value of IE decreases on going down from top to bottom in a group. eg, \[He>Ne>Ar>Kr>Xe>Rn\]


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