what are the achievements and limitations of mendellev's periodic table
Answers
Answer:
In 1869, just five years after John Newlands put forward his Law of Octaves, a Russian chemist called Dmitri Mendeleev published a periodic table. Mendeleev also arranged the elements known at the time in order of relative atomic mass, but he did some other things that made his table much more successful
Explanation:
Mendeleev periodic could accommodate noble gases. Demerits:- Could not assign a correct position to hydrogen. Position of isotopes could not be explained.
...
Hydrogen didn't have a fixed position.
isotopes were discovered later and posed a challenge.
The atomic mass of elements was not increasing in a regular manner.
Answer:
Mendeleev periodic could accommodate noble gases. Demerits:- Could not assign a correct position to hydrogen. Position of isotopes could not be explained.
...
a) Hydrogen didn't have a fixed position.
b) Isotopes were discovered later and posed a challenge.
c) The atomic mass of elements was not increasing in a regular manner.
Explanation:
Hope it is helpful for you ♥