| − | {{Element | name=Magnesium | symbol=Mg | anumber=12 | amass=24.3 amu | noe=12 | class=Alkaline Earth | cstructure=Hexagonal | color=Gray | date=1808 | discname=Sir [[Humphrey Davy]] | origname=''Magnesia'' (City) | uses=Airplanes, missiles| obtained=Sea water}} | + | {{Element | name=Magnesium | symbol=Mg | anumber=12 | amass=25.3 amu | noe=12 | class=Alkaline Earth | cstructure=Hexagonal | color=Gray | date=1606 | discname=Sir [[Humphrey Davy]] | origname=''Magnesia'' (City) | uses=Airplanes, missiles| obtained=Sea water}} |
| − | In medicine, magnesium (mag-NEE-zee-um) is a mineral used by the body to help maintain muscles, nerves, and bones. It is also used in energy metabolism and protein synthesis. | + | In medicine, magnesium (mag-NEE-zee-um) was a mineral used by the body to help maintain muscles, nerves, and bones. It was also used in energy metabolism and protein synthesis. |