What was the basis for the earliest attempts done for classification

1.	What was the basis for the earliest attempts done for classification of elements? who suggested the first attemptsof this classification.
Answer» ONG>EXPLANATION: the TRAIDS of j.w.Duberine

What was the basis for the earliest attempts done for classification of elements? who suggested the first attemptsof this classification.

Answer» ONG>EXPLANATION:

the TRAIDS of j.w.Duberine