it is arranged in the increasing order of atomic number.
The periodic table organizes the elements by atomic number (number of nuclear protons).
Atomic number
The current Periodic Table is organized by each elements atomic number. The atomic number is the number of protons in the nucleus of the atom of each element.
number of protons
Atomic number was not used by Mendeleev to organize his periodic table. He organized the elements based on their atomic mass and properties, leaving gaps for undiscovered elements that were later filled.
They used atomic number instead of Atomic Mass to organize the elements
Atomic mass was used to organize the earliest periodic table.
They used atomic number instead of Atomic Mass to organize the elements.
According to the modern periodic table "Elements are the periodic function of their atomic number".They are arranged in increasing atomic no. in the periodic table.
The first chemist to organize elements by atomic number was Dmitri Mendeleev, who is often credited with creating the periodic table. However, it was actually Glenn T. Seaborg in the 1940s who proposed the modern arrangement of the periodic table based on atomic number rather than atomic mass. Mendeleev's original periodic table was arranged by atomic mass, but he also recognized the periodicity of elements, which laid the groundwork for later developments.
The atomic number of permanganate on the periodic table is 25.
The atomic number of scandium on the periodic table is 21.