What does the periodic table show?

Answer

The periodic table shows all elements that exist. These elements are arranged in order of their specific atomic number in such a way that elements show their chemical characteristics. The table is divided into periods (horizontal) and groups (vertical).
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The Periodic Table of Elements
Dmitri Mendeleev generally is credited with the creation of the first periodic table, which charts the chemical elements by atomic number and valence shell electron configuration.
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