Question

what is modern periodic table ?​

Answer 1

Answer:

The table which is obtained by the arrangement of elements on the basis of atomic number is called modern periodic table.

Answer 2

Answer:

The modern or long form of the periodic table is based on the modern periodic law. The table is the arrangement of elements in increasing order of their atomic numbers. The modern periodic table is the present form of the periodic table. And it consists of 18 vertical columns and 7 horizontal rows.