The periodic table arranges elements based on their properties from "summary" of NCERT Chemistry Class 11 - [CBSE Board] by Dr. S. C. Rastogi, ,Er. Meera Goyal
The periodic table is a tool that organizes all known elements based on their properties. This arrangement allows scientists to easily identify trends and patterns among the elements. One important property used to organize the elements in the periodic table is their atomic number. This number represents the number of protons found in the nucleus of an atom of that element.
Elements in the periodic table are organized in rows and columns. Each row is called a period, and each column is called a group. Elements in the same group have similar properties because they have the same number of electrons in their outermost energy level. This similarity in properties is due to the elements' electronic configuration.
When elements are arranged in the periodic table, their pr...
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