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.

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.’

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 …

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 in applications …

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

What Is Hydrogen? The Ultimate Guide Introduction Hydrogen is the simplest and most abundant element in the universe, making up about 75% of all normal matter. Yet, despite its simplicity, …

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 …

May 16, 2025 · Hydrogen isn’t just a buzzword—it’s transforming industries from energy to aviation. Hydrogen is primarily used in refining, ammonia production, fuel cells, metal treatment, and rocket …

Jul 23, 2025 · As an energy carrier, it stores and transports energy produced from other resources such as fossil fuels, water, and biomass. Hydrogen is a clean-burning fuel, and when combined with …

Jan 21, 2025 · What is Hydrogen? 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 …