Periodic Table : overview : remember

Summary

The periodic table is a systematic arrangement of the chemical elements ordered by increasing atomic number. Elements are organized into periods (rows) and groups (columns) that reveal repeating (periodic) patterns in properties such as atomic radius, ionization energy, electronegativity, and typical oxidation states. The table’s structure—divided into s, p, d, and f blocks—reflects electron configurations and underpins chemical bonding, reactivity, and material behavior. It serves as a predictive map for element properties, trends, and chemical behavior across all of chemistry.