What were the limitations of Dobreiner's classification? – InterviewSolution

InterviewSolution

1.	What were the limitations of Dobreiner's classification?
Answer» Solution :He CLASSIFIED in group of three such that atomic No. of middle ELEMENTS is average of first and third element. Eg: Li(7), Na(23), K(39), Limitations : * Dobereiner could find only three triads, i.e. TOTAL of 9 elements only. * However the total number of elements were more than that of those encompassed in Dobereiner.s triad. * THUS Dobereiner could not classify most of the elements known at that time..

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