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Banking Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Question Bank Classification of Elements and Periodicity in Properties

  • question_answer
    The elements with atomic numbers 2, 10, 18, 36, 54 and 86 are all

    A)  halogen                       

    B)  noble gases  

    C)  noble metals       

    D)         light metals

    Correct Answer: B

    Solution :

     All these are noble gases with completely filled outermost shell.


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