Question

state the demerits of mendeleev's periodic table ​

Answer 1

It's in pg 20 of science 1 text book

Answer 2

Question:

State the demerits of mendeleev's periodic table?

Answer:

◆ No fixed position could be assigned to hydrogen in the Periodic Table.

◆ Isotopes discovered long after Mendeléev periodic classification.

◆ Elements imparted a challenge to Mendeleev’s Periodic Law.

◆ The atomic masses of elements did not increase in a steady manner while going from one element to other which made it difficult to predict the number of elements that could be discovered between two elements.

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