Question

What is/are the drawback(s) of Mendeleev's periodic table ? (1) Noble gases were added as group zero in the table.(2) Isobars of a particular element should be placed separately.(3) Mendeleev could not explain the cause of periodicity in the physical and chemical properties of the elements.(4) Silver and gold were placed in the same group.

Answer 1

Dear Student,
The drawbacks of mandeleev's periodic table are (2) Isotopes of the element were placed separately
(3) Mandeleev could not explain the periodicity in physical and chemical properties of the elements
Regards!