Question

State the merits of Mendeleev's classification of elements.

Answer 1

Merits of Mendeleev’s classification of elements:

1. Grouping of elements
2. Gaps for undiscovered elements: Mendeleev left some gaps in his periodic table for subsequent inclusion of elements not known at that time.
3. He predicted the properties of the then unknown elements on the basis of properties of elements lying adjacent to the vacant slots (eka-aluminium and eka-silicon).