Question

explain = dobereiner triad​

Answer 1

dobereiner made some combinations of 3 elements in which each set was such that the middle element had mass which was equal to the average of the first and the third element in the triad

i am not sure about the total number of triads he made but i guess only 3 or 4 triads

hope this helps :)

Answer 2

Explanation:

Answer

Hey Refers to this attachment