Question

write a brief note on Mendeleev's periodic table . write it's advantages and limitations​

Answer 1

Explanation:

Advantage:

1. he gave the perfect arrangements to the known 63 elements of his time
2. he also specified that not every element is found yet as what Newland claimed for.

Disadvantage:

1. no placement of Hydrogen as due to his chemical properties.
2. no placement of isotopes and isobar but it can be considered that they were not known also.