Question

What were the criteria used by Mendeleev in creating his periodic table?

Answer 1

Mendeleev's periodic table:

• Mendeleev arranged the elements in vertical columns and horizontal rows.
• All the elements discovered at that time were included in his table.

Criteria of Mendeleev's periodic table:

• Mendeleev's periodic table was based on the atomic weights of the elements.
• He arranged the elements in the increasing atomic weights as he considered that the physical and chemical properties of the elements are dependent on their atomic weights.