Question

What is the basis of the classification of elements in the Modern periodic Table?

Answer 1

Basis for the classification of elements in the Modern periodic Table:

• In modern periodic table the elements are arranged based on the atomic numbers.
• The increasing order of atomic number is the arrangement of elements without considering the atomic mass.
• The number of protons in an atom is the atomic number.
• The horizontal rows of $7$ periods and vertical columns of $18$ groups are in the Modern periodic Table.