Elements (chemical)

Chemical elements are the fundamental materials of matter—pure substances made of identical atoms, each with the same number of protons. There are 118 known elements, ranging from mercury to hydrogen, organized in the Periodic table by their atomic properties.

Every element has a unique atomic number and symbol. Some, like carbon and oxygen, are essential to life; others are rare or radioactive. Elements combine through chemical bonding to form compounds—the vast diversity of substances we encounter daily. Understanding elements unlocked modern chemistry, materials science, and our ability to engineer everything from medicine to technology.

The periodic table itself is a triumph of pattern recognition, revealing how chemical behavior repeats in elegant cycles. Elements exist in different states and exhibit wildly different properties: some are metals, others gases or brittle solids. Their combinations power food webs, build Ceramics, and structure Earth's history.

Discovery of new elements continues, though the superheavy ones exist only momentarily in laboratories. Each element tells a story of stellar transformation—most were forged in dying stars.

Related

Atomic structure, Periodic table, Chemical bonding, States of matter, Materials science, Chemistry