Moseley arranged elements according to atomic number.Mendeleev arranged elements according to Atomic Mass.
On chemical and physical properties
atomic weight
that many of the physical and chemical properties of the elements tend to recur in a systematic manner with increasing atomic number.
Mendeleev
The most important principle was the listing in groups, after similar chemical or physical properties.
On chemical and physical properties
Mendeleev believed and enunciated the law of periodicity of chemical properties for chemical elements.
Dmitri mendeleev arranged elements in order of increasing atomic masses. He considered chemical properties of the elements, their oxides and nitrides.
He classified the elements according to their chemical properties.
atomic weight
Dmitri Mendeleev was a Russian chemist who is famous for formulating the periodic table of elements, arranging them according to definite trends in their properties. He was born in 1834 and died in 1907.
Ga, Sc and Ge were important to Mendeleev because these three elements have the same physical and chemical properties.
Dmitri Mendeleev
that many of the physical and chemical properties of the elements tend to recur in a systematic manner with increasing atomic number.
the man who first arranged the elements according to atomic mass and noticed q periodic recurrence of their physical and chemical properties was Dmitri Mendeleev.
Dmitri Ivanovich Mendeleev.
I suppose that you think to chemical elements, not to compounds. Dimitri Mendeleev is credited for the creation of the periodic table of elements.