Elemental magnesium is a fairly strong, silvery white, light-weight metal. It tarnishes slightly in air, and is thus protected against further oxidation by a thin impermeable layer of oxide.

Thankfully, that's not your only option. Another sleep aid that's gained recent popularity is magnesium, which is said to calm your nervous system and help you get quality sleep. Read on to learn ...

This is because when the iron is heated, oxidation takes place. The iron oxide is no longer a pure metal, it is a dull, dark-coloured, metal compound. When you burn magnesium in the air in the ...