Hydrogen: Difference between revisions
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Hydrogen is the first element | {{Wikipedia|Hydrogen}} | ||
[[File:Hydrogen.jpg|thumb|150px|A barrel containing Hydrogen.]] | |||
'''Hydrogen''' is a chemical element with an atomic number of 1; it is the first element in the Periodic Table and is the lightest with a molar mass of 1.00794 g/mol. It has an atomic radius of 78 pm. In its natural diatomic state, it is a colorless, odorless, tasteless gas. It is a very flammable gas and is the lightest element. Its low atomic number makes it a very common component in many reactions and molecules. | |||
Hydrogen is the most common element in the entire universe because it makes up almost all stars (the rest of stars' mass is mostly [[helium]]). When purely combusted with oxygen, the (chemical equation 2H<sub>2</sub> + O<sub>2</sub> ---> 2H<sub>2</sub>O) it forms water and heat, a very useful reaction with a clean result. | |||
Hydrogen is | |||
As fossil fuels have largely been abandoned, hydrogen is one of [[human]]ity's current top power sources, commonly used in fuel cells and as fuel in [[Nuclear fusion|fusion reactors]] along with [[deuterium]]. An example of a hydrogen-powered reactor is the [[UNSC Reactor|reactor unit]] used to power [[Firebase|prefabricated bases]].<ref>[http://www.halowars.com/GameInfo/firebase.aspx '''Halowars.com''': ''Firebase'']</ref> Hydrogen gas is also used to fuel some [[United Nations Space Command|UNSC]] [[vehicles]], such as the [[M12 Light Reconnaissance Vehicle|Warthog]] and [[M274 Ultra-Light All-Terrain Vehicle|Mongoose]].<ref>[http://halo.bungie.net/News/content.aspx?type=topnews&link=BAGwarthog '''Bungie.net''': ''The Warthog'']</ref><ref>[http://halo.bungie.net/News/content.aspx?type=topnews&link=BAGMongoose '''Bungie.net''': ''The Mongoose'']</ref> | |||
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Latest revision as of 13:46, March 23, 2022
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There is more information available on this subject at Hydrogen on the English Wikipedia. |
Hydrogen is a chemical element with an atomic number of 1; it is the first element in the Periodic Table and is the lightest with a molar mass of 1.00794 g/mol. It has an atomic radius of 78 pm. In its natural diatomic state, it is a colorless, odorless, tasteless gas. It is a very flammable gas and is the lightest element. Its low atomic number makes it a very common component in many reactions and molecules.
Hydrogen is the most common element in the entire universe because it makes up almost all stars (the rest of stars' mass is mostly helium). When purely combusted with oxygen, the (chemical equation 2H2 + O2 ---> 2H2O) it forms water and heat, a very useful reaction with a clean result.
As fossil fuels have largely been abandoned, hydrogen is one of humanity's current top power sources, commonly used in fuel cells and as fuel in fusion reactors along with deuterium. An example of a hydrogen-powered reactor is the reactor unit used to power prefabricated bases.[1] Hydrogen gas is also used to fuel some UNSC vehicles, such as the Warthog and Mongoose.[2][3]
