A chemical element is a species of atom defined by its number of protons. The number of protons is called the atomic number of that element. For example, oxygen has an atomic number of 8: each …

element, component, constituent, ingredient mean one of the parts of a compound or complex whole. element applies to any such part and often connotes irreducible simplicity.

An element is composed of atoms that have the same atomic number, that is, each atom has the same number of protons in its nucleus as all other atoms of that element.

Nov 29, 2025 · A chemical element is any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all …

Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or …

ELEMENT definition: 1. a part of something: 2. a small amount of an emotion or quality: 3. a simple substance that…. Learn more.

Nov 15, 2025 · Each element has a definite atomic number and has a definite position in the periodic table. Element is the most basic form of matter (or a chemical substance) that exists under ordinary …

An element is a substance such as gold, oxygen, or carbon that consists of only one type of atom.

An element is composed of atoms that have the same atomic number; that is, each atom has the same number of protons in its nucleus as all other atoms of that element.

Element definition: A fundamental, essential, or irreducible constituent of a composite entity.