he put them in groups to show acids from alkali's and gasses from metals
The periodic table
Mendeleev primarily used the element's atomic mass to classify them. He organized the elements into a periodic table based on their increasing atomic mass, allowing him to predict the properties of missing elements and arrange them in a logical order.
The Russian, Dmitri Mendeleev's periodic table became available to the scientific community vi publication in 1869 and he is generally credited with its "creation"
He arranged the elements in the increasing order of their atomic masses and repeating periodic properties.
Mendeleev arranged the known chemical elements in a table according to increasing atomic mass and similar chemical properties. This arrangement led to the periodic table of elements, where elements with similar properties fall into the same column or group. This organization allowed Mendeleev to predict the properties of undiscovered elements and leave spaces for them in the table.
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.
Atomic Mass.
Dmitri Mendeleev
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.
Mendeleev arranged the elements in the periodic table according to their atomic masses.
Dmitri Mendeleev
Dmitri Mendeleev
Both arrange elements in groups of elements having similar properties.
Both arrange elements in groups of elements having similar properties.
The periodic table