Question

Define Mendeleev's Periodic Law.
Give two advantages of it.​

Answer 1

Mendeleev was a chemist who arranged 63 elements (known till time) on the basis of their atomic mass.
Advantage.
1. He left spaces for undiscovered elements which were discovered later. Ex. Gallium,germanium
2. He corrected the position of gold and platinum which was wrong in previous .

Answer 2

hey dude ...

here is the answer....

Mendeleev's Law=this law states that the physical and chemical properties of element and periodic function of the atomic masses .

this means that when the elements are arranged in order of increasing tomic masses 2 elements are with similar properties...

ADVANTAGE ARE::::

1)systematic study of elements.

2) correction of atomic masses.

3) position of noble gases.

hope it helps you.........