Question

Mendeleev periodic table??​

Answer 1

Answer:

pls refer the following attachment

Answer 2

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.