10th Class Science Periodic Classification of Elements

  • question_answer 76)
    Upto which element, the law of octaves was found to be applicable? (a) Oxygen                          (b) Calcium                         (c) Cobalt                             (d) Potassium

    Answer:

    (b) Newlands' law of octaves was applicable only to lighter elements having atomic masses upto 40 u i.e., upto calcium. After calcium, every eighth element did not possess properties similar to that of the first element.


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