Question

Advantages and diadvantages of mendeleev's peidic table

Answer 1

What is the demerits of Mendeleev periodic table?

Demerits of Mendeleev Periodic Table. He was unable to locate hydrogen in the periodic table. Increase in atomic mass was not regular while moving from one element to another. Hence, the number of elements yet to be discovered was not predictable.

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Answer 2

Heyaa!

Here's the answer..☺️
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Advantage of Mendeleev Periodic Table :-

1. He left blank Places which help scientist to discover new element
2. When Noble gasses was discovered Hel could add it to periodic table without any major changle 
3. He predicted the property of new element
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Disadvantages :-

1. Couldn't explain position of Hydrogen 
2. Couldn't answer the question "Can we have an element with atomic mass 3 between Hydrogen and Helium 
3. He placed cobalt before Nickel though Cobalt has more mass
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