Dmitri Mendeleev and Lothar Meyer
The periodic table used to be arranged by increasing atomic mass. Now, it is arranged by increasing atomic number (number of protons in an atom of element).
Mendeleev found properties of elements to be the periodic function of atomic mass. So, he arranged element that way.
By Atomic Mass
The scientist who recognized the periodic table for atomic number was Henry Moseley. He discovered that elements should be ordered by atomic number rather than atomic mass, which led to the modern understanding of the periodic table.
Dimitri Mendeleev
By Atomic Mass
My the Atomic Mass.
In 1869 Russian teacher and scientist Dmitri Mendeleev, presented a periodic table of the elements based on atomic weights. The current periodic table is arranged by the atomic numbers of the elements.
No. The modern periodic table is arranged in accordance to increasing atomic number and repeating properties.
Mendeleev arranged the elements in his periodic table in order of increasing atomic mass while also grouping elements with similar properties together. His periodic table laid the foundation for the modern periodic table we use today.
The elements arranged according to their atomic number in the table are called periodic table.
by Atomic Mass