chemical element

Also known as element, atomic element, chemical elements

species of atoms having the same number of protons in the atomic nucleus and the same chemical properties, but not necessarily the same mass, or the same stability (or half-lifetime if they are unstable)

OverviewAI-generated

A chemical element is a type of chemical substance that serves as a metaclass for chemical substances. It is distinct from simple substances and elemental forms. These elements are components of the periodic table and chemical compounds. The primary cause of an element's identity is its atomic number. The field of chemistry studies these substances.

The subject is featured in the Armenian Soviet Encyclopedia, Granat Encyclopedic Dictionary, Brockhaus and Efron Encyclopedic Dictionary, and the Encyclopædia Britannica 11th edition. It appears in Commons categories and galleries labeled "Chemical elements" and "Chemical element." The topic is associated with Wikipedia templates such as Infobox element and Periodic table navboxes. It is also tagged on Stack Exchange sites for chemistry and physics.

References to chemical elements appear in 1,815 other encyclopedia articles. A PubMed query for the term yields a count of 2,473,451. The subject is included on focus lists for Wikipedia articles, specifically the List of articles all languages should have and Vital articles/Level/4. A list of elements by atomic properties is available for the topic.

Synthesized by Vinony from 19 facts across 3 sources: Wikidata, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Research

2,473,451 papers

Chemical Element Mixtures and Kidney Function in Mining and Non-Mining Settings in Northern Colombia.International journal of environmental research and public health · 2023Rodriguez-Villamizar LA, Medina OM, Flórez-Vargas O et al.DOI: 10.3390/ijerph20032321
How can a chemical element elicit complex immunopathology? Lessons from mercury-induced autoimmunity.ReviewTrends in immunology · 2009Schiraldi M, Monestier MDOI: 10.1016/j.it.2009.07.005
[The chemical and trace element composition of water sources in the Orenburg Region].ReviewGigiena i sanitariia · 2009Chesnokova LA, Krasikov SI, Voronkova IP et al.
Secret lanthanides.ReviewJournal of medicine and life · 2014Sturza CM
Element and chemical compounds transfer in bio-crude from hydrothermal liquefaction of microalgae.Bioresource technology · 2016Tang X, Zhang C, Li Z et al.DOI: 10.1016/j.biortech.2015.11.076
Sulfur, the Versatile Non-metal.Metal ions in life sciences · 2020Sosa Torres ME, Rito Morales A, Solano Peralta A et al.DOI: 10.1515/9783110589757-008
Factors that influence the distribution of trace element-containing chemical species in living systems before and after sample collection.ReviewJournal of trace elements and electrolytes in health and disease · 1993Gardiner PH
Research of the impact of environmentally persistent free radicals on chemical element behaviour in the soil-plant system.Chemosphere · 2024Baltrėnaitė-Gedienė E, Lomnicki S, Ogunmusi ODOI: 10.1016/j.chemosphere.2024.143088

via PubMed

~40 min read

Encyclopedic overview

The chemical elements ordered in the periodic table, as shown in the 32-column format

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 oxygen atom has 8 protons in its nucleus. Atoms of the same element can have different numbers of neutrons in their nuclei, known as isotopes of the element. Atoms of one element can be transformed into atoms of a different element in nuclear reactions, which change an atom's atomic number. Almost all baryonic matter in the universe is composed of elements (among rare exceptions are neutron stars).

Excerpted from Wikipedia’s “chemical element” article, available under the CC BY-SA 4.0 licence.