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Chemical element - Wikipedia
A chemical element is a chemical substance whose atoms all have the same number of protons. The number of protons is called the atomic number of that element. For example, oxygen has an atomic number of 8, meaning each oxygen atom has 8 protons in its nucleus. Atoms of the same element … See more
The lightest elements are hydrogen and helium, both created by Big Bang nucleosynthesis in the first 20 minutes of the universe in a ratio of around 3:1 by mass (or 12:1 by number of atoms), along with tiny traces of the … See more
The following sortable table shows the 118 known elements.
• Atomic number, Element, and Symbol all serve independently … See moreThe various chemical elements are formally identified by their unique atomic numbers, their accepted names, and their chemical symbols See more
The following graph (note log scale) shows the abundance of elements in our Solar System. The table shows the 12 most common elements in … See more
Wikipedia text under CC-BY-SA license List of chemical elements - Wikipedia
118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z).
The definitive visualisation of all 118 elements is the periodic table of the elements, whose history along the principles of the periodic law was one of the founding developments of modern chemistry. …Wikipedia · Text under CC-BY-SA license- Estimated Reading Time: 2 mins
List of elements by symbol - Simple English Wikipedia, the free ...
119 rows · A list of chemical elements with their atomic numbers, names, symbols, groups, …
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See all 119 rows on simple.wikipedia.orgCHEMICAL SYM NAME ORIGIN OF SYMBOL ATOMIC NO. Ac Actinium 89 227.0278 u Ag Silver 47 107.8682 u Al Aluminium 13 26.981539 u Am Americium 95 243.0614 u
Periodic table - Wikipedia
The periodic table is an ordered arrangement of the chemical elements by atomic number and properties. Learn about its history, structure, variations, trends, classification and future extensions.
Chemical element - Simple English Wikipedia, the free encyclopedia
Learn about the basic building blocks of matter, their properties, symbols, isotopes, and classification. Find out how elements are arranged in the periodic table and …
- Chemical elements are given a unique chemical symbol. Chemical symbols are used all over the world. This means that, no matter which language is spoken, there is no confusion about what t…
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List of elements - Simple English Wikipedia, the free encyclopedia
121 rows · A list of all 118 chemical elements that have been identified, with their symbols, names, origins, groups, periods, weights, densities, melting and boiling points, heats, and …
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List of chemical elements - Periodic Table
119 rows · Here's a list of all of the chemical elements of the periodic table ordered by increasing atomic number. Click on the column header to sort the table by that column or click on an …
Chemical element - Wikipedia
A chemical element is a species of atoms with the same number of protons in their nuclei. Learn about the periodic table, examples, and references of chemical elements from Wikipedia.
Naming of chemical elements - Wikipedia
Chemical elements may be named from various sources: sometimes based on the person who discovered it, or the place it was discovered. Some have Latin or Greek roots deriving from …
What Is an Element in Chemistry? Definition and Examples
Oct 17, 2020 · In chemistry, an element is defined as a pure substance composed of atoms that all have the same number of protons in the atomic nucleus. In other words, all atoms of an …
Chemical element | Definition, Origins, Distribution,
3 days ago · chemical 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. This article considers …
Category:Chemical elements - Wikipedia
A 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 …
Category:Chemical elements - Simple English Wikipedia, the free ...
Wikimedia Commons has media related to Chemical elements. This category has the following 8 subcategories, out of 8 total. The following 21 pages are in this category, out of 21 total.
Chemical element - Wikiversity
Aug 17, 2023 · A chemical element is a substance that cannot be changed into any other substance by a normal chemical reaction. An element is made up of atoms containing …
List of chemical element naming controversies - Wikipedia
Charles Hatchett named element 41 columbium in 1801 [4] (Cb), [5] but after the publication of On the Identity of Columbium and Tantalum by William Hyde Wollaston in 1809, the claims of …
List of chemical elements named after places - Wikipedia
This list of chemical elements named after places includes elements named both directly and indirectly for places. 41 of the 118 chemical elements have names associated with, or …
化學元素 - 维基百科,自由的百科全书
化學元素,常简称 元素,是一百多种基本的 金属 和 非金属 纯物质,也是構成 物質 的基本單位,不能直接用 化學方法 分解。 同一種化學元素是由 質子 數相同的 原子 組成,用一般的化学 …
List of elements by atomic properties - Wikipedia
This is a list of chemical elements and their atomic properties, ordered by atomic number (Z). Since valence electrons are not clearly defined for the d-block and f-block elements, there not …
Names for sets of chemical elements - Wikipedia
There are currently 118 known chemical elements with a wide range of physical and chemical properties. Amongst this diversity, scientists have found it useful to apply names for various …
Tennessine - Wikipedia
Tennessine is a synthetic chemical element; it has symbol Ts and atomic number 117. It has the second-highest atomic number and joint-highest atomic mass of all known elements and is the …
Mineral (nutrient) - Wikipedia
Carbonic anhydrase, an enzyme that requires zinc (gray sphere near the center of this image), is essential for exhalation of carbon dioxide.. In the context of nutrition, a mineral is a chemical …