In February, we have selected iron, the most abundant element on Earth, with chemical symbol Fe (from the Latin word “ferrum”) and atomic number 26.Ī neutral iron atom contains 26 protons and 30 neutrons plus 26 electrons in four different shells around the nucleus. 1 and dissected hydrogen’s role in oxidation-reduction reactions and electrochemical gradients as driving energy force for cellular growth and activity. In iron-deficiency anemia, the heart works harder to pump more oxygen through the body, which often leads to heart failure or disease.We are celebrating the 150th anniversary of Mendeleev’s periodic table by highlighting one or more chemical elements with important biological functions each month in 2019. Each monomer contains a heme group in which an iron ion is bound to oxygen. Samarskite, a mineral named after V.Hemoglobin is a tetramer that consists of four polypeptide chains. Greek xénon, neuter form of xénos 'strange'Ĭeres, a dwarf planet, considered a planet at the time Symbol Sb is derived from Latin stibium ' stibnite'įrench iode, from Greek ioeidḗs, 'violet'.Latin antimonium, the origin of which is uncertain: folk etymologies suggest it is derived from Greek antí ('against') + mónos ('alone'), or Old French anti- moine, 'Monk's bane', but it could plausibly be from or related to Arabic ʾiṯmid, 'antimony', reformatted as a Latin word Latin indicum, ' indigo', the blue colour found in its spectrum Symbol Ag is derived from Latin argentum.Pallas, an asteroid, considered a planet at the time Greek rhodóeis, ' rose-coloured', from rhódon, ' rose' Greek molýbdaina, 'piece of lead', from mólybdos, 'lead', due to confusion with lead ore galena (PbS) Niobe, daughter of king Tantalus from Greek mythology see also tantalum Zircon, a mineral, from Persian zargun, 'gold-hued' Ytterby, Sweden, where it was found see also terbium, erbium, ytterbium ![]() ![]() Strontian, a village in Scotland, where it was found Most likely from German Zinke, 'prong' or 'tooth', though some suggest Persian sang, 'stone'įrench arsenic, from Greek arsenikón 'yellow arsenic' (influenced by arsenikós, 'masculine' or 'virile'), from a West Asian wanderword ultimately from Old Iranian *zarniya-ka, 'golden' Nickel, a mischievous sprite of German miner mythologyĮnglish word, from Latin cuprum, from Ancient Greek Kýpros ' Cyprus' Vanadis, an Old Norse name for the Scandinavian goddess FreyjaĬorrupted from magnesia negra see § magnesiumĮnglish word, from Proto-Celtic * īsarnom ('iron'), from a root meaning 'blood' Titans, the sons of the Earth goddess of Greek mythology New Latin potassa, ' potash', itself from pot and ash Greek argós, 'idle' (because of its inertness) ![]() Latin silex, ' flint' (originally silicium) Magnesia, a district of Eastern Thessaly in GreeceĪlumina, from Latin alumen (gen. Symbol Na is derived from New Latin natrium, coined from German Natron, ' natron'.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. 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. 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 which have been identified as of 2022. List of the 118 identified chemical elements
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