Hydrogen is an element. It has the atomic symbol H and the atomic number of 1. Hydrogen is the most abundant of all the chemical elements, the universe is composed of roughly 75% hydrogen. However elemental hydrogen existing naturally on [[Earth]] is extremely rare because it combines with other chemicals easily. Hydrogen is The most abundant element in universe.
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[[Category:Chemistry]]
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Hydrogen has the atomic symbol H and the atomic number of 1. Hydrogen is the most abundant of all the chemical elements, the universe is composed of roughly 75% hydrogen. However naturally occuring elemental hydrogen on [[Earth]] is extremely rare.
==Composition of the Atom==
==Composition of the Atom==
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The hydrogen [[atom]] is made up of one proton and one electron with no neutrons.
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One isotope of the hydrogen [[atom]] is made up of one proton and one electron with no neutrons. This is called protium. There is also [[deuterium]], with one proton, one electron, and one neutron, and [[tritium]] with one proton, one electron and TWO neutrons. Tritium is radioactive.
==Fuel for Vehicles==
==Fuel for Vehicles==
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The hydrogen fuel cell is a pioneering form of alternative energy. It is very clean burning, the only by-product of its combustion is pure water. This would slow down the impact that [[global warming]] is having on the Earth. Unfortunatlly there are some set backs. The amount of hydrogen needed to fuel a regular sized car would be extremely large and would not be as convenient as a fuel tank is now. Aydrogen is extremely flammable and the flame is nearly invisible. The chances of a massive fatal explosion in an accident is greater than in one with gas powered veichles.
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The hydrogen fuel cell is a pioneering form of alternative energy. It is very clean burning, the only by-product of its combustion is pure water. This would slow down the impact that [[global warming]] is having on the Earth. Unfortunatlly there are some set backs. The amount of hydrogen needed to fuel a regular sized car would be extremely large and would not be as convenient as a fuel tank is now. Hydrogen is extremely flammable and the flame is nearly invisible. The chances of a massive fatal explosion in an accident is greater than in one with gas powered veichles.