Question

What is the difference between modern amd mendelleves periodic table?

Answer 1

$\huge \mathfrak \pink{modern \: table}$

The correct statement for modern periodic table is that, It has 18 vertical columns known as groups. It also has 7 horizontal rows known as periods.

$\huge \mathfrak \red{mendelleves \: periodic \: table}$

Mendeleev realized that the physical and chemical properties of elements were related to their atomic mass in a 'periodic' way, and arranged them so that groups of elements with similar properties fell into vertical columns in his table.

Answer 2

Answer:

Mendeleev's periodic table: Mendeleev's periodic table is, based on relation of properties of elements as dependent on the atomic weight of element.

Modern periodic table: Modern periodic table considers atomic number as the fundamental property that decides the properties of elements.