
Hydrogen - Wikipedia
Under standard conditions, hydrogen is a gas of diatomic molecules with the formula H2, called dihydrogen, or sometimes hydrogen gas, molecular hydrogen, or simply hydrogen. Dihydrogen is …
Hydrogen | Properties, Uses, & Facts | Britannica
Dec 7, 2025 · 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 …
What is h2 in chemistry? - California Learning Resource Network
Apr 18, 2025 · Hydrogen (H 2), a diatomic molecule consisting of two hydrogen atoms covalently bonded, holds a position of paramount importance in chemistry, physics, and increasingly, in …
What Does H2 Stand For in Molecular Hydrogen? - Biology Insights
2 days ago · H2 stands for Molecular Hydrogen, also known as dihydrogen. This molecule is gaining significant attention in the fields of health and science for its biological effects. It is a simple, naturally …
H2 Definition - Intro to Chemistry Key Term | Fiveable
H2 is the chemical formula for the diatomic molecule of hydrogen, which is the simplest and most abundant element in the universe. This term is crucial in understanding the phases and classification …
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 (H) - Definition, Preparation, Properties, Uses, Compounds ...
Jan 21, 2025 · We write H2 instead of H because hydrogen naturally exists as a diatomic molecule, meaning two hydrogen atoms bond together to form H2, the most stable form of hydrogen gas.
3.2: Hydrogen - The Simplest Atom - Chemistry LibreTexts
This page discusses hydrogen (H), the first element, primarily as the diatomic molecule (H2), a colorless, odorless gas used in industries like ammonia and methanol production.
Hydrogen Basics - Alternative Fuels Data Center
Hydrogen (H 2) is an alternative fuel that can be produced from diverse domestic resources, including renewables, and is expected to play an important, multi-pronged role in decarbonizing the …
Hydrogen - Formula, Properties, Uses, Facts - Study Chemistry
Hydrogen, symbol H, molecular formula H2 is a colourless, odourless, tasteless, flammable gaseous chemical substances among the periodic table family