Answer:
Magnesium is used in flares and flashbulbs.
Explanation:
Magnesium is the metal having atomic number 12 and mass number 24
Magnesium burns with a brilliant white light and is used in pyrotechnics, flares and photographic flashbulbs.
Magnesium is the lightest metal that can be used to build things, although its use as a structural material is limited since it burns at relatively low temperatures.
Magnesium can be extracted from the minerals dolomite (CaCO3·MgCO3) and carnallite (KCl·MgCl2·6H2O), but is most often obtained from seawater.
