Question

Define Döbereiner's Triads..?​

Answer 1

Answer:

Dobereiner's triads were groups of elements with similar properties that were identified by the German chemist Johann Wolfgang Dobereiner. He observed that groups of three elements (triads) could be formed in which all the elements shared similar physical and chemical properties.

Answer 2

the atomic mass of the middle element was roughly the average of the atomic masses of the other two elements