元素符号:Fe
中文名称:铁
英文名称:Iron
原子序数:26
原子量:55.85
外围电子排布:3d6 4s2
核外电子排布:2,8,14,2
常见化合价:+2,+3
密度:7.86
溶点:1535
沸点:2861
所属周期:4
所属族数:VIII
原子半径:1.72
离子半径:0.55(+3)
共价半径:1.17
同位素及放射性:Fe-54 *Fe-56 Fe-57 Fe-58
发现人:Known to the ancients.
发现时间:
发现地点:
名称由来:Anglo-Saxon: iron; symbol from Latin: ferrum (iron).
元素描述:Malleable, ductile, silvery-white metal. Fourth most abundant element in the earth's crust (56,300 ppm). Ninth most abundant element in the universe.
元素来源:Obtained from iron ores. Pure metal produced in blast furnaces by layering limestone, coke and iron ore and forcing hot gasses into the bottom. This heats the coke red hot and the iron is reduced from its oxides and liquified where it flows to the bottom
元素用途:Used in steel and other alloys. Essential for humans. It is the chief constituent of hemoglobin which carries oxygen in blood vessels. Its oxides are used in magnetic tapes and disks. |
发表于 2006-4-3 11:46:38
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发表于 2006-4-3 15:03:56
