he developed the first Periodic Table in the increasing order of atomic masses of elements.but after the discovery of isotopesthis periodic table was not consider to be effective.
Mendeleev arranged the elements in the increasing order of their atomic masses and repeating periodic properties.
Dmitri Mendeleev first periodic table is called Mendeleev's periodic table. Elements are arranged according to atomic mass.
The first element of the Mendeleev's periodic table is hydrogen (H).
Hydrogen is the first chemical element in the Periodic Table of Mendeleev.
=== ===Dmitri Mendeleev was a Russian chemist who formulated the periodic table.
Dmitri MendeleevDmitri Mendeleev
Publishing the first Periodic Table.
Dmitri Mendeleev is considered the father of the periodic table. He created the first widely accepted version of the periodic table in 1869, arranging elements based on their properties and atomic weights. Mendeleev's table laid the groundwork for the modern periodic table.
63 elements were in Dmitri Mendeleev's First periodic table 63 elements were in Dmitri Mendeleev's First periodic table
He made the first periodic table.
Dmitri Mendeleev was the first to develop the modern periodic table in 1869. Later, Henry Moseley rearranged the elements by atomic number, which is the modern arrangement. So, Mendeleev comes before Moseley in terms of their contributions to the modern periodic table.
Mendeleev