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. It improves strength ...

錳 （英語： Manganese），是一種 化學元素， 化學符號 为 Mn， 原子序數 为25， 原子量 為 54.938 043 u。 錳在自然界中並不會以純元素 單質 的形式存在，而是經常以與 鐵 所形成的 礦物 形式被發現。 錳是重要工業用 合金 所使用的 過渡金屬，特別是用於 不銹鋼 的材料。 歷史上，錳的名稱來自生產 軟錳礦 以及其他黑色礦物的 希臘 馬格尼西亞 地區，這個地區的名稱來自其生產 鎂 以及 磁鐵礦。 到了大約18世紀中葉時，瑞典裔德國科學家 卡爾·威廉·舍勒 已經可以利用軟 …

Manganese is a silvery-gray metal and is part of the group known as the transition metals. It is similar to iron. It is hard to melt, but easy to oxidize. Manganese forms chemical compounds in several oxidation states: +2, +4, and +7 are the most common. Manganese compounds can be black, brown, pink, red, green, blue, and purple.

Manganese is an essential biological element in all organisms. [1] . It is used in many enzymes and proteins. [2][3] It is essential in plants. [4] The classes of enzymes that have manganese cofactors include oxidoreductases, transferases, hydrolases, lyases, isomerases and ligases.

Dec 20, 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.

The isotopes of manganese range from 46 Mn to 73 Mn. The primary decay mode before the most abundant stable isotope, 55 Mn, is electron capture and the primary mode after is beta decay.

Manganese is a heavy metal that comprises about 0.1% of the Earth's crust and a necessary element for biological processes. It is cycled through the Earth in similar ways to iron, but with distinct redox pathways. Human activities have impacted the fluxes of manganese among the different spheres of the Earth.

Manganese is a chemical element, designated bi the seembol Mn. It haes the atomic nummer 25. It is foond as a free element in naitur (eften in combination wi iron ), an in mony meenerals .

Jan 9, 2025 · manganese (countable and uncountable, plural manganeses) (uncountable) A metallic chemical element (symbol Mn) with an atomic number of 25, not a free element in nature but often found in minerals in combination with iron, and useful in industrial alloy production.

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 …