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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
    Which of the following group of elements belongs to alkali metals?

    A)  1, 12, 30, 4, 62            

    B)  37, 19, 3, 55  

    C)  9, 17, 35, 53                

    D)  12, 20, 56, 88

    Correct Answer: B

    Solution :

     Alkali metals have 1 electron in valence shell.


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