Hydrogen - Wikipedia
Hydrogen is a chemical element; it has symbol H and atomic number 1. It is the lightest element and, at standard conditions, is a gas of diatomic molecules with the formula H 2, sometimes called dihydrogen, [11] but more commonly called hydrogen gas, molecular hydrogen or …
Hydrogen | Properties, Uses, & Facts | Britannica
2024年10月30日 — hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements. The hydrogen atom has a nucleus consisting of a proton bearing one unit of positive electrical charge; an electron, bearing one unit of negative electrical charge, is also
Hydrogen explained - U.S. Energy Information Administration (EIA)
Hydrogen is a gas at normal temperature and pressure, but hydrogen condenses to a liquid at minus 423 o F (-253 o C). Energy carriers transport energy in a usable form from one place to another. Elemental hydrogen is an energy carrier that must be produced from another substance.
Hydrogen | History, Uses, Facts, Physical & Chemical Characteristics
Hydrogen is one of the three most abundant elements present on Earth. It was discovered in 1766 by Henry Cavendish and is widely used for various industrial, medical and recreational purposes.
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 is the raw fuel that most stars 'burn' to produce energy. The same process, known as fusion, is being studied as a possible power source for use on earth. The sun's supply of hydrogen is expected to last another 5 billion years. From the Greek word hydro (water), and genes (forming).
Hydrogen | H2 | CID 783 - PubChem
Hydrogen is a colorless, odorless gas. It is easily ignited. Once ignited it burns with a pale blue, almost invisible flame. The vapors are lighter than air. It is flammable over a wide range of vapor/air concentrations. Hydrogen is not toxic but is a simple asphyxiate by the displacement of oxygen in the air.
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 is essential for life, and it is present in nearly all the molecules in living things, according to the Royal Society of Chemistry. The element also occurs in the stars and powers the...
- 某些结果已被删除