Gentendo

A Forum For Both Sega and Nintendo Fans
HomePortalCalendarFAQSearchMemberlistUsergroupsRegisterLog in
Welcome, Guest.
Not registered? Sign up and become a part of our community today!

Share | 
 

 Magnesium..

View previous topic View next topic Go down 
AuthorMessage
wangrong



Posts : 189
Registration date : 2010-10-10

PostSubject: Magnesium..   Fri Nov 12, 2010 3:06 am

Magnesium (play /mæɡˈniːziəm/ mag-NEE-zee-əm) is a chemical element with the symbol Mg, atomic number 12 and common oxidation number +2. It is an alkaline earth metal and the eighth most abundant element in the Earth's crust, where it constitutes about 2% by mass,[2] and ninth in the known Universe as a whole.[3][4] This preponderance of magnesium is related to the fact that it is easily built up in supernova stars from a sequential addition of three helium nuclei to carbon (which in turn is made from three helium nuclei). Magnesium ion's high solubility in water helps ensure that it is the third most abundant element dissolved in seawater.[5]

Magnesium is the 11th most abundant element by mass in the human body; its ions are essential to all living cells, where they play a major role in manipulating important biological polyphosphate compounds like ATP, DNA, and RNA. Hundreds of enzymes thus require magnesium ions to function. Magnesium is also the metallic ion at the center of chlorophyll, and is thus a common additive to fertilizers.[6] Magnesium compounds are used medicinally as common laxatives, antacids (i.e., milk of magnesia), and in a number of situations where stabilization of abnormal nerve excitation and blood vessel spasm is required (i.e., to treat eclampsia). Magnesium ions are sour to the taste, and in low concentrations help to impart a natural tartness to fresh mineral waters.


home business opportunity
naples real estate
Back to top Go down
View user profile
 
Magnesium..
View previous topic View next topic Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
Gentendo :: Other :: General Discussion-
Jump to: