12
Magnesium
Atomic Number12
Atomic Mass24.305 u
CategoryAlkaline Earth
State at Room TempSolid
Year Discovered1755
About Magnesium
The eighth most abundant element in Earths crust. Burns with an intensely bright white light, used in flares and fireworks. Essential for over 300 enzyme reactions in the human body. Chlorophyll contains a magnesium ion at its center. Alloyed with aluminum for lightweight aircraft and car parts. Epsom salt is magnesium sulfate.
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