Did Döbereiner’s triads also exist in the columns of Newlands’ Octaves? Compare and find out.

Explanation

Yes, Debereiner's triands also exist in the columns of Newlands classification of elements based on the law of octaves. Consider the elements lithium (`Li`) sodium `(Na)` and potassium `(K)` which are present in the second column of Newlands Classification of elements. Now if we start with lithium as the 1st element, then the 8 th element from it is sodium, and accoridng to Newland's law of octaves, the properties of 8 th element sodium should be similar to those of the first element lithium. Again if we take sodium as the 1st element then the 8 the element from it is potassium, and according to Newlands' law of octaves the properties of 8th element potassium should be similar to those of the 1st element sodium. This means that according to Newlands' law of octaves, the elements lithium sodium and potassium should have similar chemical properties. We also know that lithium, sodium and postassium form a Dobereiner's triad having similar chemical properties. from this we conclude that Dobereiner's triads also exist in the columns of Newlands' octaves.