Question

What are the drawbacks of mendeleev periodic table's? ​

Answer 1

Answer:

1.anomalous position of hydrogen

2.anomalois position of isotops

3.elements having different properties were placed in same group.

4.elements having same property were placed on different group.

5.etc.....

Answer 2

Answer:

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Explanation:

• no fixed position can be given to hydrogen in the periodic table.
• isotopes have similar chemical properties but different atomic masses according to the Mendeleev periodic law isotope of an element must be given separate place in periodic table but isotopes were not given separate places
• in Mendeleev table certain parts of the elements were placed in reverse order of their atomic masses example covid having higher atomic masses that is