Question

which criteria did Mendeleev keep in mind for creating his periodic table?
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Answer 1

Answer:

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 funtction of their atomic masses. And thus, he arranged the elements in the increasing order of their atomic masses.

Explanation:

Answer 2

Answer:

Explanation:

The criteria used by Mendeleev in creating his periodic table were:

(i) The atomic mass of the elements was used to arrange the elements.

(ii) Grouping the elements according to their similar chemical properties.

And hence proposed that the chemical properties of the elements are the periodic function of their atomic masses and thus he arranged the elements according to the increasing order of atomic masses.