Magnesium is Element #12

Today I'm going to talk about the element Magnesium, the most interesting and cool element out of all :D
In Italian they call it "Magnesio", in German and Swedish they use the word "Magnesium" the same way as we do in English. Origin of the name was from the Greek word "Magnesia", a district of Thessaly.
These are some pictures of Magnesium :)

Magnesium's most common isotope contains 12 protons and 13 neutrons. Its naturally occurring isotopes are ²⁴Mg, ²⁵Mg, and ²⁶Mg, but they don't have any half-lives. Their natural abundance are 78.99% (4), 10.00% (1), 78.99% (4).
There are 12 electrons in a neutral atom for Magnesium, its shell structure is 2.8.2
The bond length in Mg is: 319.7 pm.
Magnesium's properties in pure element form are meteorites and iron.
Magnesium is the eighth most abundant element in the earth's crust but is never found as the free metal. There are many minerals containing magnesium including magnesite and dolomite. Sea water also contains plenty of magnesium.
Magnesium in the Universe is 600000 ppb by weight and 30000 ppb by atoms
It can form compunds like, Fluorides - Magnesium difluoride: MgF₂
Chlorides - Magnesium dichloride: MgCl₂
Iodides - Magnesium diiodide: MgI₂
Sulfides - Magnesium sulphide: MgS

IMPORTANT INFO COMING YOUR WAY - Magnesium was discovered by Sir Humphrey Davy at 1755 in England.
In 1618 a farmer at Epsom in England attempted to give his cows water from a well. This they refused to drink because of the water's bitter taste. However the farmer noticed that the water seemed to heal scratches and rashes. The fame of Epsom salts spread. Eventually they were recognised to be magnesium sulphate, MgSO₄. Black recognized magnesium as an element in 1755. It was isolated by Davy in 1808 who electrolysed a mixture of magnesia (magnesium oxide, MgO) and mercuric oxide (HgO). Davy's first suggestion for a name was magnium but the name magnesium is now used.

Magnesium is an important element for plants and animals. Chlorophylls (responsible for the green colour of plants) are compounds knonw as porphyrins and are based upon magnesium. Magnesium is required for the proper working of some enzymes. The adult daily requirement of magnesium is about 0.3 g day^-1.

I calculated and found out that there were 5.516100000000001 grams of magnesium in my body, what about you my friend? :P

My Reference: http://www.webelements.com/