![]() Magnesia, a district of Eastern Thessaly in GreeceĪlumina, from Latin alumen (gen. Element Symbol Name Atomic Mass, u 3 Li Lithium 7.0 4 Be Beryllium 9.012 12 Mg Magnesium 24.305 20 Ca Calcium 40.08 21 Sc Scandium 44.955 22 Ti Titanium 47.87 23 V Vanadium 50.941 24 Cr Chromium 51.996 25 Mn Manganese 54.938 26 Fe Iron 55.84 27 Co Cobalt 58.933 28 Ni Nickel 58.693 29 Cu Copper 63.55 30 Zn Zinc 65. Use this is a reference with a periodic table. Use the buttons above to change your view of the periodic table and view Murray Robertson’s stunning Visual Elements artwork. Click the tabs at the top to explore each section. Symbol Na is derived from Neo-Latin natrium, coined from German Natron, ' natron' This table of element valences includes the maximum valence and most common valence values. The Royal Society of Chemistry's interactive periodic table features history, alchemy, podcasts, videos, and data trends across the periodic table.Greek elements hydro- and -gen, ' water-forming'īeryl, a mineral (ultimately from the name of Belur in southern India) īorax, a mineral (from Arabic bawraq, Middle Persian * bōrag) For more detailed information about the origins of element names, see List of chemical element name etymologies. ![]() 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. It is a tabular arrangement of the elements by their chemical properties that usually uses abbreviated chemical symbols in place of full element names, but the linear list format presented here is also useful. It is the 21 th most abundant element on. Chromium is a chemical element of the periodic table with chemical symbol Cr and atomic number 24 with an atomic weight of 51. It is a hard, lustrous, silvery-grey transition metal, whose name comes from the Greek word Chroma, which means color. 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. Chromium (Cr) is a chemical element of the periodic table, located in the group 6 and the period 4, and has the atomic number 24. A chemical element, often simply called an element, is a type of atom which has the same number of protons in its atomic nucleus (i.e., the same atomic number, or Z). This is a list of the 118 chemical elements that have been identified as of 2023. You will need to refer to a periodic table for proton values.List of the 118 identified chemical elements In this notation, the atomic number is not included. Symbol-mass format for the above atom would be written as Cr-52. Each tile has a color coded label on the. For an example of this notation, look to the chromium atom shown below:Īnother way to refer to a specific atom is to write the mass number of the atom after the name, separated by a hyphen. The Periodic Element Guys are Proud to present a Crystalline Chromium 99.99 Cr Sample in a Periodic Element Tile. The "A" value is written as a superscript while the "Z" value is written as a subscript. Both the atomic number and mass are written to the left of the chemical symbol. Chromium is a hard, lustrous, steel-gray metal. The composition of any atom can be illustrated with a shorthand notation called A/Z format. It is the first element in group 6 on the periodic table, with an atomic weight of 51.996 and a density of 7.19 grams per cubic centimeter.
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