en.wikipedia.org/wiki/Chemical_elementIn chemistry, an element is a pure substance which cannot be broken down by chemical means, consisting of atoms which have identical numbers of protons in their atomic nuclei.The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number (represented by the symbol Z). Chemical elements constitute all of the baryonic matter of the universe.
www.britannica.com/science/chemical-elementChemical element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. 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.
www.britannica.com/topic/list-of-chemical-elements-2026117A chemical element is any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. Here, the elements are ordered alphabetically. Each element is followed by its atomic number, the total
www.thoughtco.com/what-is-a-chemical-element-604297A chemical element, or an element, is defined as a material which cannot be broken down or changed into another substance using chemical means. Elements may be thought of as the basic chemical building blocks of matter. There are 118 known elements.Each element is identified according to the number of protons it has in its atomic nucleus.
dictionary.cambridge.org/us/dictionary/english/chemical-elementchemical element meaning: 1. a substance that cannot be broken down into any simpler chemical substances and is made of atoms…. Learn more.
en.wiktionary.org/wiki/chemical_elementchemical element (plural chemical elements) Any one of the simplest chemical substances that cannot be decomposed in a chemical reaction. Chemical elements consist of atoms which have the same number of protons. Synonyms . element; Translations
en.wikipedia.org/wiki/List_of_chemical_elementsThis is a list of the 118 chemical elements which have been identified as of 2020. A chemical element, often simply called an element, is a species of atoms which all have the same number of protons in their atomic nuclei (i.e., the same atomic number, or Z).. A popular visualization of all 118 elements is the periodic table of the elements, a convenient tabular arrangement of the elements by ...
en.wikipedia.org/wiki/Category:Chemical_elementsA chemical element is a substance that cannot be divided or changed into different substances by ordinary chemical methods. The smallest particle of such an element is an atom, which consists of electrons centered around a nucleus of protons and neutrons
www.britannica.com/science/lutetiumLutetium (Lu), chemical element, a rare-earth metal of the lanthanide series of the periodic table, that is the densest and the highest-melting rare-earth element and the last member of the lanthanide series. In its pure form, lutetium metal is silvery white and stable in air. The metal is easily