Hydrogen | Properties, Uses, & Facts | Britannica
2024年10月30日 · Hydrogen, a colorless, odorless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements. The earliest known chemical property of hydrogen is that it burns with oxygen to form water; indeed, the name hydrogen is derived from Greek words meaning ‘maker of water.’
Hydrogen explained - U.S. Energy Information Administration (EIA)
Hydrogen is the simplest element. Each atom of hydrogen has only one proton. Hydrogen is also the most abundant element in the universe. The sun, and other stars, are essentially giant balls of hydrogen and helium gases. Hydrogen occurs naturally on earth in compound form with other elements in liquids, gases, or solids.
Hydrogen | History, Uses, Facts, Physical & Chemical Characteristics
Isotopes of Hydrogen. There are three naturally occurring isotopes of hydrogen, named 1 H (protium), 2 H (deuterium), and 3 H (tritium). Protium is the most abundant hydrogen isotope (99.98%). Tritium is the most stable radioisotope and have a half-life of 12.32 years. All heavier isotopes of hydrogen are synthetic and are extremely unstable.
Hydrogen - Department of Energy
2 天之前 · Hydrogen is a highly versatile energy carrier and an input to several important chemical and industrial processes. When it is produced cleanly—from renewables, nuclear power, or fossil energy with carbon capture—it can play a vital role in reducing emissions from some of the hardest-to-decarbonize parts of our economy. These parts of our economy are also among …
Hydrogen | H (Element) - PubChem
Hydrogen was first recognized as a distinct element by Henry Cavendish in 1766. Composed of a single proton and a single electron, hydrogen is the simplest and most abundant element in the universe. It is estimated that 90% of the visible universe is composed of hydrogen. Hydrogen is the raw fuel that most stars 'burn' to produce energy.
Hydrogen - Element information, properties and uses | Periodic …
Hydrogen was the unwitting discovery of Paracelsus, the sixteenth century Swiss alchemist also known as Theophrastus Philippus Aureolus Bombastus von Hohenheim. He found that something flammable bubbled off metals that were dropped into strong acids, unaware of the chemical reaction that was forming metal salts and releasing hydrogen, something ...
Hydrogen | H2 | CID 783 - PubChem
Hydrogen, refrigerated liquid (cryogenic liquid) appears as a colorless very cold liquid shipped in special heavily insulated containers.Boils at -442 °F. Contact causes severe frostbite. Hydrogen gas at normal temperatures is lighter than air but until vapors boiling off from the liquid warm up they are heavier than air. Very easily ignited. Burns with a pale blue, almost invisible flame.
What is hydrogen? | Hydrogen energy explained - National Grid …
2023年2月23日 · Hydrogen is a clean alternative to methane and is the most abundant chemical element, estimated to contribute 75% of the mass of the universe. Find out why hydrogen is important as a future clean energy source to fuel our homes and businesses.
Hydrogen Fuel Basics - Department of Energy
Hydrogen is a clean fuel that, when consumed in a fuel cell, produces only water. Hydrogen can be produced from a variety of domestic resources, such as natural gas, nuclear power, biomass, and renewable power like solar and wind.
Facts About Hydrogen - Live Science
2015年1月23日 · Hydrogen combines with other elements, forming a number of compounds, including common ones such as water (H 2 O), ammonia (NH 3), methane (CH 4), table sugar (C 12 H 22 O 11), hydrogen peroxide ...
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