Question

What were the critetia used by Mandeleev in creating his periodic table? ​

Answer 1

Heya!❤️

The criteria used by Mandeleev were :

• The arrangement of element in increasing order of atomic masses

• .Similarity in chemical properties of the elements.

Hope this helps

@adiba31❤️✌

Answer 2

Answer:

he arranged the elements by atomic mass but it is wrong

Explanation:

because in modern periodic table the elements are arrange in increasing no. of their atomic mass