increasing Proton number.
Moseley arranged elements according to atomic number.Mendeleev arranged elements according to atomic mass.
On chemical and physical properties
that many of the physical and chemical properties of the elements tend to recur in a systematic manner with increasing atomic number.
He made flashcards of elements and organized them in order of increasing atomic mass.
Henry Moseley discovered a relation between X-ray spectra and the atomic number of chemical elements.
Chemical elements arrangement was the object of study for Mendeleev.
He classified the elements according to their chemical properties.
Mendeleev arranged the elements by increasing atomic mass instead of like today by increasing atomic number.
Dmitri Mendeleev
Mendeleev arranged the elements according to their atomic weight and valence.
Moseley arranged elements according to atomic number.Mendeleev arranged elements according to atomic mass.
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.
On chemical and physical properties
Dmitri Mendeleev
Mendeleev believed and enunciated the law of periodicity of chemical properties for chemical elements.
that many of the physical and chemical properties of the elements tend to recur in a systematic manner with increasing atomic number.
Dmitri mendeleev arranged elements in order of increasing atomic masses. He considered chemical properties of the elements, their oxides and nitrides.