a Russian chemist

Dmitri Mendeleev, a Russian chemist, was the first to develop a periodic table of the elements.

a Russian chemist and inventor who formulated the Periodic Law

Dmitri Ivanovich Mendeleev (1834-1907) was a Russian chemist and inventor who formulated the Periodic Law, created a visionary version of the periodic table of elements, and used elements to correct the properties of some elements that had already been discovered.

as 'The Father of the Periodic table'

Dmitri Mendeleev is often referred to as 'The Father of the Periodic table'.