Like the periodic table, the list below organizes the elements by the number of protons in their atoms; it can also be organized by other properties, such as atomic weight, density, and electronegativity.

For elements with no stable isotopes, the mass number of the isotope with the longest half-life is in parentheses.

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 …

May 17, 2014 · This element list includes the names, symbols, and atomic numbers of all 118 chemical elements, arranged in order of increasing atomic number. The atomic number is the number of …

Dec 10, 2025 · Periodic table, in chemistry, is an organized array of all the chemical elements in order of increasing atomic number. When the elements are thus arranged, there is a recurring pattern called …

There are 118 elements on the periodic table. Here's a list of all of the chemical elements of the periodic table ordered by increasing atomic number.

Learn about the periodic table of elements. Find lesson plans and classroom activities, view a periodic table gallery, and shop for periodic table gifts.

Explore the chemical elements through this periodic table ... The standard form of the periodic table shown here includes periods (shown horizontally) and groups (shown vertically).

All matter is composed of elements. Chemical elements are represented by a one- or two-letter symbol.

Elements: The Periodic Table provides comprehensive and useful information about the chemical elements all in one place.