Question

What were the criteria used by mendeleev in creating his
periodic Table ?​

Answer 1

Answer:

Mendeleev used atomic mass of the elements as the unique criteria of the elements.

Answer 2

Mendeleev used atomic mass of the elements as the unique criteria of the elements. He proposed that the chemical properties of elements are the periodic function of their atomic masses. And thus, he arranged the elements in the increasing order of their atomic masses.