Question

dobereiner trick arthat kya ? samjhaiye​

Answer 1

Answer:

In the history of the periodic table, Döbereiner's triads were an early attempt to sort the elements into some logical order by their physical properties, he arranged elements into group of 3 and called them as triads and said that when the elements in triad arranged in increasing order of atomic mass , the atomic mass of the middle element will be roughly the average of atomic mass of other two elements .