Magnesium - Definition - Law Dictionary Home Dictionary Definition magnesium

Definition :

A light silver white metallic element of atomic number 12 malleable and ductile quite permanent in dry air but tarnishing in moist air It burns forming the oxide magnesia with the production of a blinding light the so called magnesium light which is used in signaling in pyrotechny or in photography where a strong actinic illuminant is required Its compounds occur abundantly as in dolomite talc meerschaum etc Symbol Mg Atomic weight 24305 Specific gravity 175