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 · Elements are the fundamental materials of which all matter is composed. Learn more about the origins, distribution, and characteristics of chemical elements in this article.

What is an element in chemistry? We explore the definition of an element, and discuss their characteristics and properties.

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

Nov 15, 2025 · Elements are pure substances that cannot be broken down (or decomposed) into simpler substances by chemical changes or chemical reactions. Each element has a definite atomic number …

What is an Element? An element is a substance whose atoms all have the same number of protons: another way of saying this is that all of a particular element's atoms have the same atomic number. …

Define a chemical element and give examples of the abundance of different elements. Represent a chemical element with a chemical symbol. An element is a substance that cannot be broken down …

Jul 23, 2025 · Elements in chemistry are the building blocks of all the matter in the universe. There are 118 elements known to humans that are arranged in the table called the periodic table.