Question

Who was Neils Bohr and what are the limitations of his periodic table

Answer 1

Neils Bohr prepared modern periodic table of elements.

Answer 2

Nelis Bohr was a scientist of Chemistry .
He has discovered many theory for example that--Niels Bohr (1923) was the first to propose that the periodicity in the properties of the chemical elements might be explained by the electronic structure of the atom. In fact, his early proposals were based on his own “toy-model” (Bohr atom) for the hydrogen atom in which the electron shells were orbits at a fixed distance from the nucleus. Bohr’s original configurations would seem strange to a present-day chemist: the sulfur atom was given a shell structure of  (2,4,4,6)  instead of ,the right structure being (2,8,6).


thanks;)
☺☺☺