The modern periodic table states, "The properties of elements are the periodic functions of their atomic number. ”
The modern periodic table is based on modern periodic law.
The modern periodic table is an arrangement of all the elements known in accordance with their increasing atomic number and recurring chemical properties.
It is a tabular display of 118 chemical elements which consists of horizontal rows called periods and vertical columns called groups.
There are seven periods and eighteen groups in the modern periodic table.
Henry Moseley in the year 1913 gave modern periodic law.