#1
27th March 2016, 01:30 PM
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Manganese ore characteristics
Hello sir I am making project report on characteristics of Manganese ore so please provide me complete details of this element and its characteristic.
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#2
27th March 2016, 01:31 PM
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Re: Manganese ore characteristics
Manganese is a chemical element, designated by the symbol Mn. It has the atomic number 25. It is found as a free element in nature (often in combination with iron), and in many minerals. Properties of Manganese ore Manganese is a pinkinsh-gray, chemically active element. It is a hard metal and is very brittle. It is hard to melt, but easily oxidized. Manganese is reactive when pure, and as a powder it will burn in oxygen, it reacts with water (it rusts like iron) and dissolves in dilute acids. Characteristics Physical properties Manganese is a silvery-gray metal resembling iron. It is hard and very brittle, difficult to fuse, but easy to oxidize. Manganese metal and its common ions are paramagnetic. Chemical properties The most common oxidation states of manganese are +2, +3, +4, +6 and +7, though oxidation states from −3 to +7 are observed Data Zone Classification: Manganese is a transition metal Color: gray-white Atomic weight: 54.9380 State: solid Melting point: 1250 oC, 1523 K Boiling point: 2060 oC, 2333 K Electrons: 25 Protons: 25 Neutrons in most abundant isotope: 30 Electron shells: 2, 8, 13, 2 Electron configuration: [Ar] 3d5 4s2 Density @ 20oC: 7.43 g/cm3 |
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