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.

4 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.’

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 …

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 …

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 …

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 …

Jan 8, 2026 · Hydrogen is the most abundant element in the universe and sometimes hailed as “the fuel of the future” for its impressive efficiency as a green energy carrier. Over the last two decades, …

5 days ago · Blending green hydrogen with natural gas is seen by some as key to achieving California’s clean energy goals.

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

May 4, 2025 · Hydrogen, represented by the symbol H and atomic number 1, is the lightest and most basic element in the universe. Its most abundant isotope, protium, contains only a single proton and …