what is magnesium

Magnesium is an abundant metallic chemical element which has a number of industrial applications in addition to being vital for many living organisms, including humans. The atomic number of magnesium is 12, and the element is identified with the symbol Mg on the periodic table of elements. It is classified as an alkaline earth element, along with calcium and barium, among others. One of the more distinctive uses of magnesium is a source of illumination, since it burns bright white when ignited.