He arranged the elements in the increasing order of Atomic Mass and repeating properties so that it is easy to study the properties / reactivities of the elements.
he put them in groups to show acids from alkali's and gasses from metals
Mendeleev arranged the elements according to their atomic weight and valence.
Atomic Mass.
Dmitri Mendeleev
Mendeleev arranged the elements in the periodic table according to their atomic masses.
your mums atomic acid
The periodic table of Mendeleev has 18 groups and 7 periods.
mendelev arranged the elements in the periodic table in the asending order of the mass number of elements.
Dmitri Mendeleev
Dmitri Mendeleev
increasing Proton number.
The periodic table