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Created with Fabric.js 1.4.5 Magnesiu m Magnesiu m double click to change this header text! double click to change this header text! Magnesium is a chemical element with symbol Mg and atomic number 12. Its common oxidation number is +2. It is an alkaline earth metal and the eighth-most-abundant element in the Earth's crust and ninth in the known universe as a whole. Magnesium is the fourth-most-common element in the Earth as a whole. Magnesium is produced in stars larger than 3 solar masses by fusing helium and neon in the alpha process at temperatures above 600 megakelvins. The free element (metal) is not found naturally on Earth, as it is highly reactive (though once produced, it is coated in a thin layer of oxide. The metal is now obtained mainly by electrolysis of magnesium salts obtained from brine. In commerce, the chief use for the metal is as an alloying agent to make aluminum-magnesium alloys, sometimes called magnesium or magnelium. The rise of large-scale laboratory research in nineteenth-century Germany has often been portrayed as a continuous success story. Taken as indicative are the two sciences on the leading edge of the trend, chemistry and physiology; developments in biology, physics, and the technical fields At first glance, the founding in 1879 of the world's first continuously operating psychological laboratory. In Leipzig by Wilhelm Wundt, a physiologist turned philosopher, seems to fit this model very well.
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