Hydrogen - Wikipedia
Hydrogen is a chemical element; it has the symbol H and atomic number 1. It is the lightest and most abundant chemical element in the universe, constituting about 75% of all normal matter.
Hydrogen | Properties, Uses, & Facts | Britannica
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 occurs naturally on earth in compound form with other elements in liquids, gases, or solids. Hydrogen combined with oxygen is water (H 2 O). Hydrogen combined with carbon forms different compounds—or hydrocarbons—that are found in natural gas, coal, and petroleum.
Hydrogen Energy Explained: Everything You Should Know
Hydrogen energy refers to the use of hydrogen as a clean and versatile energy carrier which is capable of storing, moving and delivering energy produced from diverse sources such as water, fossil fuels or biomass to power vehicles, generate electricity and heat buildings.
Hydrogen - Department of Energy
Hydrogen has been described as the “Swiss army knife” of energy because it plays a key role in several sectors where there are limited or no viable alternatives (including in applications where electrification is particularly challenging or costly).
Hydrogen - Energy Education
Hydrogen plays an incredibly large role in the workings of stars, but is also of vast importance on the Earth. It is rarely in its free state on Earth, instead it combines with many elements to form molecules that are important for life.
Why Hydrogen Is So Unique in Chemistry - sciencenewstoday.org
Hydrogen is the simplest atom possible: one proton, one electron, and, in its most common form, no neutrons. This simplicity might suggest predictability or even boredom. But don’t be fooled. Because of its simplicity, hydrogen is also the most sensitive to the subtleties of quantum mechanics.
What is hydrogen? - National Grid Group
Hydrogen is a clean alternative to methane, also known as natural gas. It's the most abundant chemical element, estimated to contribute 75% of the mass of the universe. Here on earth, vast numbers of hydrogen atoms are contained in water, plants, animals and, of course, humans.