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Manganese is a chemical element; it has symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese was first isolated in the 1770s. It is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels.
Mangan – Wikipedia, wolna encyklopedia. Spis treści. ukryj. Początek. Odmiany alotropowe. Odkrycie. Występowanie w skorupie ziemskiej. Sztuczne radioizotopy. Właściwości chemiczne i fizyczne. Otrzymywanie. Znaczenie biologiczne. Uwagi. Mangan. Wygląd. Na tę stronę wskazuje przekierowanie z „Mn”.
17 wrz 2024 · Manganese, chemical element that is a silvery white, hard, brittle metal of Group 7 in the periodic table. It was recognized as an element in 1774 by the Swedish chemist Carl Wilhelm Scheele. Although rarely used in pure form, manganese is essential to steelmaking.
Le manganèse(symbole Mn) est un élément chimiquepossédant un seul isotope stable, et dont le numéro atomiqueest 25. Sous forme de corps simple, le manganèse est un métal de transition, dont le solide grisâtre existe sous quatre variétés allotropiques.
Learn about manganese, a hard, brittle, silvery metal that is essential for many enzymes and alloys. Find out its history, discovery, biological role, natural abundance, uses and more from the Royal Society of Chemistry.
Discover the fascinating world of Manganese, a crucial transition metal with diverse applications. Learn about its history, physical & chemical properties, notable chemical reactions, and its indispensable role in industrial processes and biological systems.
manganese , Metallic chemical element, one of the transition elements, chemical symbol Mn, atomic number 25. It is a silvery white, hard, brittle metal, widely distributed in Earth’s crust in combination with other elements.
