What was the Mendeleev's basis of the classification of elements.?

State any two points of Mendeleev.s basis for classification of elements ?

(a) What was the basis of Mendeleev's Classification of elements ? (b) List two achievements of Mendeleev's periodic tables. (c) List any two observations which posed a challenge to Mendeleev's periodic law.

(a) What was the basis of Mendeleev's Classification of elements ? (b) List two achievements of Mendeleev's periodic tables. (c) List any two observations which posed a challenge to Mendeleev's periodic law.

State the merits of Mendeleev's classification of elements.

What is the main basis for the classification of sponges ?

What was the basis of Mendeleev's classification ?

What was the basis of classification of elements by Lother Meyer?