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=__ Hydrogen __ = Atomic Number: 1 Atomic Wieght: 1 Freezing Point: -259*c Boiling Point: -252*c Symbol: H 

Hydrogen is the lightest of all elements. It is also one the most abundant, making up around 75% of the universes mass, though being reasonable rare on Earth. Hydrogen is a Non-metal chemical element which has been used for uses ranging from powering vehicles to feuling the most powerful weapon ever made - the H-bomb.

media type="youtube" key="IUIMgbXOmJg" height="344" width="425"media type="youtube" key="fesgl5Cs5FY" height="344" width="425" When combined with oxygen it makes H2O - water. Hydrogen has also be used for many things such as Hot Air Balloon, although it isn't exactly the best choice for the job as it's extremely flamable as in the case of the Hindenburg which burst into flames while landing. The Sun is basically a giant ball of Hydrogen and Helium, and in the centre of the Sun they join together (fusion) to form radiant energy. This is where the sun's heat and light come from. 

Hydrogen has also been used to power vehicles, as a green alternative to fosile fuels. Many companies are investigating Hydrogennot only because it's beter for the environment, but it is also cheaper.



Hydrogen is the only element in space. It is invisible to the naked eye. Hydrogen is also highly flameable and will burn in air very easily. Hydrogen has three isotopes - protium, deuterium, tritium. Isotopes are different tyes of atoms in an element. They are also called nuclides.