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- Name : Magnesium
- Symbol : Mg
- Atomic # : 12
- Atom weight: 24.305
- Melting P. : 648.8
- Boiling P. : 1090
- Oxidation : +2
- Pronounced : mag-NEE-zhi-em
- From : Named for ancient Magnesia in Thessaly, Greece
- Identified : Sir Humphry Davy in 1808
- Appearance : Lightweight, malleable, silvery-white metal
- Note : Eighth most abundant element in the known universe.
-
- [Properties]
-
- Magnesium belongs to the set of Group-IIA metals known as the alkaline-
- earth metals. This menas they have a number of significant properties in
- common. They are all very metallic in nature, for example. Tehy are silvery
- white, fairly hard, and good conductors of electricity. They all have
- much higher melting temperatures than their alkali-metal counterparts in
- Group IA.
- Magnesium is perhaps better known for its high level of reactivity. It
- combines with most nonmetals and is frequently used as an oxidizer to
- displace other metal ions from their compounds. Magnesium also serves as
- a catalyst in a few important inorganic reactions and in a rather large
- number of biochemical processes.
- Finely ground magnesium readily burns in air, giving off a brilliant
- blue-white light. Magnesium was the primary ingredient in photographic
- flash bulbs.
-