Magnesium is light and strong metal. Its density is a quarter of that of iron, two-thirds of aluminum. It is also a very good conductor of heat.
Another notable property of magnesium is that it is highly reactive. When magnesium meets water, it burns fiercely. Magnesium is no less flammable to hydrogen.
Compared for the same volume, magnesium is heavier than hydrogen. However, hydrogen requires a sturdy tank, and it might leak from the tank in case of
Magnesium can also be used as a fuel for fuel cells. A lot of laboratories are developing a metal-air battery, such as zinc, aluminium, iron, lithium and magnesium. It is a battery which uses oxidizing properties between metal and oxygen. An ordinary battery needs cathode active and anode active.