On Earth, it is relatively rare—5.2 ppm by volume in the atmosphere. Most terrestrial helium present today is created by the natural radioactive decay of heavy radioactive elements (thorium and …

Dec 4, 2025 · Helium, chemical element, inert gas of Group 18 (noble gases) of the periodic table. The second lightest element, helium is a colorless, odorless, and tasteless gas that becomes liquid at …

Helium is an odorless, nontoxic, colorless, tasteless gas; it has a very low chemical reactivity and it is lighter than air. These characteristics are why helium plays a prominent role in space exploration, …

Element Helium (He), Group 18, Atomic Number 2, s-block, Mass 4.003. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

Helium replaces cell towers with small devices called Hotspots that provide affordable connectivity and expand coverage wherever people gather, work, and move. Businesses and individuals host them, …

Helium is an inert gas and does not easily combine with other elements. There are no known compounds that contain helium, although attempts are being made to produce helium diflouride (HeF …

Helium is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, non-toxic, inert, monatomic gas and the first in the noble gas ...

Helium was made in the first three minutes of the universe’s existence, when temperatures everywhere were high enough for nuclear fusion to occur. This short, high energy phase is represented at the …

Explore the versatile world of Helium, the second most abundant element in the universe. Learn about its physical and chemical properties, historical background, and varied applications in healthcare, …

We offer helium in high-pressure gas and liquid cylinders — available in a variety of sizes — to meet any small to medium volume needs. Need help determining the right right quantity for your application?