atomic weight
Mendeleev arranged the elements in the increasing order of their atomic masses and repeating properties.
On chemical and physical properties
An element's atomic number, or how many protons it has.
Mendeleev organized the elements by atomic number and properties. For example all the elements in each column have similar chemical and physical properties because they have the the same amount of valence electrons or the same number short of a full outer energy level.
that many of the physical and chemical properties of the elements tend to recur in a systematic manner with increasing atomic number.
Mendeleev arranged the elements in the increasing order of their atomic masses and repeating properties.
These elements have similar chemical properties.
On chemical and physical properties
An element's atomic number, or how many protons it has.
Mendeleev's periodic table was organized in order of increasing atomic masses. He arranged elements having similar properties together.
atomic number Chemical elements are organized in the form of the periodic table of Mendeleev, in groups and periods.
Mendeleev believed and enunciated the law of periodicity of chemical properties for chemical elements.
Mendeleev organized the elements by atomic number and properties. For example all the elements in each column have similar chemical and physical properties because they have the the same amount of valence electrons or the same number short of a full outer energy level.
He organized it according to the atomic mass.
Dmitri Mendeleev is credited for creating the periodic table.
Dmitri mendeleev arranged elements in order of increasing atomic masses. He considered chemical properties of the elements, their oxides and nitrides.
Mendeleev organized the elements according to their increasing atomic masses and considered their fundamental properties . He also considered the Hydrides and Oxides formed by the elements.