Banking Chemistry Classification of Elements and Periodicity in Properties Question Bank Classification of Elements and Periodicity in Properties

  • question_answer 27) Which fact is not valid for Dobereiner's triads?

    A)  The atomic weight of middle element is roughly average of the other two elements

    B)  The properties of middle element is roughly average of the other two elements  

    C)  The elements of triads belong to the same group of modem periodic table

    D)  The elements of triads have same valency electrons.

    Correct Answer: B

    Solution :

     Not Available

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