Question

what are Demerits of Doberiners triads?

Answer 1

the some of the demerits of doberiner's traids is :-

1:- he was failed to make all than known element in the form of traids. their experiment is only limited to three traids which he identify only

2:-they also not signify the relation of atomic masses and chemical properties of element.

3;-he not uses the atomic no. .which is basis of classification of elements

Answer 2

1.Doberiners triads cannot arrange all the metals in the triad method