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  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

    Nov 27, 2025 · 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 Energy Explained: Everything You Should Know

    Hydrogen energy is emerging as a key clean fuel in the global move toward sustainability, offering the potential to decarbonise industries, transport and energy systems. This article, brought to …

  4. Earth's crust hides enough 'gold' hydrogen to power the world ...

    10 hours ago · Reservoirs of hydrogen gas that form naturally in Earth's crust could help humans decarbonize. The challenge now is finding these accumulations and working out how best to …

  5. Hydrogen - Department of Energy

    Nov 28, 2025 · 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 …

  6. 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 …

  7. Hydrogen - Element information, properties and uses ...

    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. Why Hydrogen Still Matters In A Warming World - Forbes

    Nov 27, 2025 · Hydrogen won’t save the planet alone, but we won’t reach net zero without it. The solutions are seen as costly today, but will be indispensable tomorrow.

  9. Hydrogen Basics | NLR

    5 days ago · Hydrogen can be made directly from fossil fuels or biomass, extracted from geologic reservoirs, or produced by passing electricity through water, breaking the water into its …

  10. Hydrogen (H) - Definition, Preparation, Properties, Uses ...

    Jan 21, 2025 · Hydrogen is the simplest and most abundant element in the universe, consisting of just one proton and one electron. This lightweight, colorless gas is found in great abundance in …