
Helium - Wikipedia
Helium (from Ancient Greek: ἥλιος, romanized: helios, lit. 'sun') 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 …
Helium | Definition, Properties, Uses, & Facts | Britannica
Jan 16, 2026 · 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 - Own the Air
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, …
About Helium - Bureau of Land Management
Helium was first identified in 1868 by astronomers studying the sun. It is the second most common element in the universe, with only hydrogen being more abundant. Here on Earth, Helium is a non …
Helium - Element information, properties and uses | Periodic Table
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 - New World Encyclopedia
In the present-day universe, almost all new helium is created as a result of the nuclear fusion of hydrogen in stars. On Earth, it is produced by the radioactive decay of much heavier elements. After …
Helium-3: Scarcity, Strategy, and the Case for a Terrestrial First.
Jan 16, 2026 · Helium-3, widely regarded as the most valuable isotope known to humankind, is now being referenced openly at the highest levels of government policymaking, increasingly recognised …
Helium 101 - Education
Oct 19, 2023 · What is helium used for, and where does it come from? Learn facts about this noble gas, including how it causes balloons to float, its surprising uses in medicine and exploration, and how its …
Helium Definition, Facts, Symbol, Discovery, Property, Uses
Helium (pronunciation: HEE-lee-em) is a colorless, odorless element classified as a non-metal, belonging to the group of inert gases in the periodic table and is represented by the chemical symbol …
Helium Facts (Atomic Number 2 or He) - ThoughtCo
Sep 2, 2021 · Helium is atomic number 2 on the periodic table, with the element symbol He. It is a colorless, flavorless gas, best known for its use in filling floating balloons.