Modern Periodic Law and Table (Groups, Periods, Blocks) : Elements with Atomic Numbers More than 100
The Modern Periodic Law and Modern Periodic Table provide a systematic and scientific arrangement of elements based on their atomic numbers. Unlike earlier classifications, the modern periodic table explains periodicity in terms of electronic configuration, making it more accurate and reliable. Elements are arranged in rows called periods and columns called groups, and are further divided into blocks such as s-block, p-block, d-block, and f-block. This classification helps in understanding trends in properties, predicting chemical behavior, and forming a strong foundation for advanced chemistry concepts. Modern periodic table extends beyond atomic number 100 with the inclusion of superheavy elements that are artificially synthesized in laboratories. According to the Modern Periodic Law, these elements are arranged based on their atomic numbers and electronic configurations, fitting systematically into groups, periods, and blocks of the periodic table. Most of these elements belong to the f-block and d-block regions and are highly unstable with very short lifetimes. Despite their instability, their placement in the modern periodic table helps in understanding periodic trends, nuclear stability, and the expansion of chemical knowledge.
