Dec 7, 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 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.

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

Dec 17, 2025 · New research shows rising hydrogen emissions since 1990 have indirectly intensified climate change and amplified the impact of methane. Limiting leaks from future hydrogen fuel …

Dec 19, 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 …

Hydrogen Formula: H 2 Molecular weight: 2.01588 IUPAC Standard InChI: InChI=1S/H2/h1H Copy

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 …

Hydrogen is one of the three most abundant elements present on Earth. It was discovered in 1766 by Henry Cavendish and is widely used for various industrial, medical and recreational purposes.

Hydrogen is a colorless, odorless gas. It is easily ignited. Once ignited it burns with a pale blue, almost invisible flame. The vapors are lighter than air. It is flammable over a wide range of vapor/air …

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, …