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The periodic table, also known as the periodic table of the elements, is a tabular display of the chemical elements. It is widely used in chemistry, physics, and other sciences, and is generally seen as an icon of chemistry.
The periodic table, also known as the periodic table of the (chemical) elements, is a tabular display of the chemical elements.

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.

The modern periodic table was prepared by Neils Bohr. It is also known as a long form of periodic table. It has been designed on the basis of the modern periodic law which states that "the properties of the elements are periodic functions of their atomic numbers." This periodic law was proposed by Henry Moseley.