Question

write the difference between modern and Mendeleevs periodic law​

Answer 1

Explanation:

As per Mendeleev's Periodic Law, the physical and chemical properties of the elements are a periodic function of their atomic weight.

Modern Periodic Law the physical and chemical properties of the elements are a periodic function of their atomic number.

Answer 2

Answer:

The major difference is that the elements in Mendeleev's periodic table were arranged by atomic mass and the modern periodic table arranges elements by atomic number.