The periodic table is a tabular arrangement of chemical elements based on their atomic numbers, electron configurations, and recurring chemical properties.
It features an 18 by 7 grid and includes specific groups and periods that highlight similar and progressive element attributes. This layout aids in understanding and predicting chemical behavior.
The table can also be deconstructed into four rectangular blocks: the s-block to the left, the p-block to the right, the d-block in the center, and the f-block at the bottom.
This organization helps in understanding the trends in various chemical properties, such as electronegativity, ionization energy, and atomic radius.
Columns, known as groups, contain elements with similar properties, and rows, known as periods, showcase a progression of these properties.