Magnesium is the eighth most abundant element and makes up about 2% of the Earth's crust. It is the third most abundant element dissolved in seawater. It is a silver-white, very light metal, one third lighter than aluminium. In the air, in the form of dust, it heats up and burns. Burns with a white flame. Magnesium has neither smell nor taste. In the periodic table, it has the symbol Mg and atomic number 12, it is used in metal or steel industry and construction, as a protect