The mass of the elements
Mendeleev used atomic mass to arrange periodic table.He gave his model in 1869.
atomic weight
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).
Atomic weight
Atomic number on the basis of Modern periodic law as on the view of Henry Mosely
Mendeleev arranged the elements in the periodic table according to their atomic masses.
There are NO compounds in the Periodic Table. They are all Elements.
The periodic table is arranged in order by atomic number, the number of protons in the nucleus of the atom. The columns of the table represent elements with similar chemical characteristics. You could arrange the elements in alpha order, but it wouldn't be very useful.
The "Periodic Table of Elements" is used for classifying the elements, and to know which one is which.
Periodic table is expressed as rows and columns. It is used by locating the position of element.
Periodic Table is expressed as rows and columns. It is used by locating the position of element.
Dmitri Mendeleev was a Russian chemist who proposed the Periodic Law. He published the first periodic table of the chemical elements in 1869, based on the increasing atomic masses of the different elements.