About 266,000 results
Open links in new tab
  1. 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.

  2. Hydrogen | Properties, Uses, & Facts | Britannica

    6 days ago · 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.’

  3. 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 …

  4. Hydrogen - Department of Energy

    3 days ago · 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 …

  5. What is hydrogen? | National Grid

    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 …

  6. 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 …

  7. Hydrogen - Element information, properties and uses | Periodic Table

    Element Hydrogen (H), Group 1, Atomic Number 1, s-block, Mass 1.008. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

  8. Hydrogen Factsheet - Center for Sustainable Systems

    Hydrogen is a feedstock and energy carrier used in multiple sectors. Global hydrogen demand reached 97 Mt in 2023, a 2.5% increase from 2022, with 10 Mt in the U.S. 1,2 Hydrogen is the most abundant …

  9. Why Hydrogen Is So Unique in Chemistry - sciencenewstoday.org

    May 1, 2025 · 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 …

  10. What is hydrogen? Explained simply! - TÜV NORD

    Hydrogen is currently being touted as the miracle cure for the energy revolution. The smallest element in the universe is set to make transport and industry more environmentally friendly.