Facts about the Classification of the Element Magnesium
Magnesium is classified as an "Alkaline Earth Metals" which are located in Group 2 elements of the Periodic Table. An Element classified as an Alkaline Earth Metals are found in the Earth’s crust, but not in the elemental form as they are so reactive. Instead, they are widely distributed in rock structures.

Brief Facts about the Discovery and History of the Element Magnesium
Magnesium was discovered by Joseph Black, in England, in 1755. The element was isolated by A. A. B. Bussy and Sir Humphrey Davy in 1808.

Occurrence of the element Magnesium
Does not occur uncombined with other elements
Obtained from sea water
Eighth most abundant element in the earth's crust
Found in large deposits of magnesite, dolomite, and other minerals

Common Uses of Magnesium
Dead-burned magnesite is used as brick and liners in furnaces and converters
Photography - old type flash powder and flash bulbs
Flares
Pyrotechnics
Incendiary bombs
Airplanes
Missiles
Magnesium chloride, citrate, sulfate, oxide , hydroxide, stearate, taurate , sulphate and glycinate

The Properties of the Element Magnesium
Name of Element : Magnesium
Symbol of Element : Mg
Atomic Number of Magnesium : 12
Atomic Mass: 24.305 amu
Melting Point: 650.0 °C - 923.15 °K
Boiling Point: 1107.0 °C - 1380.15 °K
Number of Protons/Electrons in Magnesium : 12
Number of Neutrons in Magnesium : 12
Crystal Structure: Hexagonal
Density @ 293 K: 1.738 g/cm3
Color of Magnesium : silvery-white