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- Helium is a chemical element with atomic number 2 that is a colorless, odorless, and nonflammable gas1234. It is lighter than air and often used to fill balloons and airships123. It is also used as a coolant for superconductors and as a component of inert atmospheres14. It is found in natural gases and belongs to the noble gas group14.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.The meaning of HELIUM is a chemical element of the noble gas group with atomic number 2 that is found especially in natural gases and used chiefly for inflating airships and balloons, as a coolant for superconductors, and as a component of inert atmospheres (as in welding) —often used before another noun.www.merriam-webster.com/dictionary/heliuma chemical element that is a gas lighter than air, that will not burn and is used in balloons, airships, and some types of lightsdictionary.cambridge.org/dictionary/english/heliumHELIUM meaning: a chemical element that is a colorless gas, that is lighter than air, and that is often used to fill balloonswww.britannica.com/dictionary/heliumhelium (ˈhiːlɪəm) n (Elements & Compounds) a very light nonflammable colourless odourless element that is an inert gas, occurring in certain natural gases: used in balloons and in cryogenic research.www.thefreedictionary.com/helium - See more
See all on WikipediaHelium - Wikipedia
Helium (from Greek: ἥλιος, romanized: helios, lit. 'sun') is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements, and it does not have … See more
Scientific discoveries
The first evidence of helium was observed on August 18, 1868, as a bright yellow line with a wavelength of 587.49 nanometers in the spectrum of the chromosphere of the Sun. The line was … See moreWhile balloons are perhaps the best-known use of helium, they are a minor part of all helium use. Helium is used for many purposes that require … See more
Effects
Neutral helium at standard conditions is non-toxic, plays no biological role and is found in trace … See moreAtom
In quantum mechanics
In the perspective of quantum mechanics, helium is the second … See moreNatural abundance
Although it is rare on Earth, helium is the second most abundant element in the known Universe, … See moreWhile chemically inert, helium contamination impairs the operation of microelectromechanical systems (MEMS) such that iPhones … See more
Wikipedia text under CC-BY-SA license Helium Definition & Meaning - Merriam-Webster
WEBHelium is a light, colorless, nonflammable gas that is found in natural gases and used for various purposes. Learn more about its etymology, history, examples, and related words …
Helium | Definition, Properties, Uses, & Facts | Britannica
Helium is a colourless, odourless, and tasteless gas that becomes liquid at −268.9 °C. It is the second lightest element and the second most abundant in the …
- helium (He), chemical element, inert gas of Group 18 (noble gases) of the periodic table. The second lightest element (only hydrogen is lighter), helium is a colourless, odourless, and tastele…
- Published: Jul 20, 1998
HELIUM Definition & Meaning | Dictionary.com
WEBHelium definition: an inert, gaseous element present in the sun's atmosphere and in natural gas, and also occurring as a radioactive decomposition product, used as a …
HELIUM | English meaning - Cambridge Dictionary
WEBHelium is a chemical element that is a gas lighter than air, that will not burn and is used in balloons, airships, and some types of lights. Learn more about helium, see …
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HELIUM | definition in the Cambridge English Dictionary
WEBHelium is a chemical element that is a gas lighter than air, that will not burn and is used in balloons, airships, and some types of lights. Learn more about helium, see examples …
Helium - Element information, properties and uses | Periodic Table
WEBAfter hydrogen, helium is the second most abundant element in the universe. It is present in all stars. It was, and is still being, formed from alpha-particle decay of radioactive …
helium summary | Britannica
WEBHelium is a noble gas, colourless, odourless, tasteless, and nontoxic. It is the second most abundant and second-lightest element in the universe, and it is used in various …
Helium - Simple English Wikipedia, the free encyclopedia
WEBHelium is a chemical element. It has the chemical symbol He , atomic number 2, and atomic weight of about 4.002602. There are 9 isotopes of helium, only two of which are …
Helium - Definition, Meaning & Synonyms | Vocabulary.com
WEBDefinitions of helium. noun. a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in …
helium noun - Definition, pictures, pronunciation and usage notes ...
WEBDefinition of helium noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Understanding Helium: Properties, Uses, and Importance - A ...
WEBExplore the versatile world of Helium, the second most abundant element in the universe. Learn about its physical and chemical properties, historical background, and varied …
Helium Definition, Facts, Symbol, Discovery, Property, Uses
WEBHelium is a colorless, odorless, non-metallic gas that belongs to the group of inert gases. It is the second-most abundant element in the universe and is formed from …
Helium, Chemical Element - structure, uses, elements, metal, gas ...
WEBHelium is the second most abundant element in the universe. Only hydrogen occurs more often than helium. Helium is also the second simplest of the chemical elements. Its …
Helium Element | History, Uses, Facts, Physical & Chemical …
WEBDefinition, mass & chemical names. Helium. Helium is the second most abundant element in the universe and is primarily produced because of radioactive decay. It was …
Helium - Wikiwand
WEBHelium (from Greek: ἥλιος, romanized: helios, lit. 'sun') is a chemical element; it has symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, …
Helium (He) - Physical & Chemical Properties, Uses, Isotopes
WEBHelium is a colourless, odourless and tasteless gas that is the second lightest element and the first noble gas in the periodic table. It has a low boiling and melting point, and is used …
Noble gas | Definition, Elements, Properties ... - Britannica
WEBMay 17, 2024 · noble gas, any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), …
helium - Kids | Britannica Kids | Homework Help
WEBHelium is a gas that has no color, odor, or taste. It will not burn or react with other elements. Where Helium Is Found. Helium is commonly found in the atmosphere of stars. Helium …
Helium 101 - Education | National Geographic Society
WEBOct 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 …
Helium Definition & Meaning | Dictionary.com
WEBHelium definition, an inert, gaseous element present in the sun's atmosphere and in natural gas, and also occurring as a radioactive decomposition product, used as a …
The World Is Constantly Running Out Of Helium. Here's Why It …
WEBNov 8, 2019 · Helium is the only element on the planet that is a completely nonrenewable resource. On Earth, helium is generated deep underground through the natural …
The Origin Of The Word 'Helium' - Science Friday
WEBMar 26, 2019 · Helium comes from the Greek word for sun, helios. That connection to the sun is the reason why, for nearly three decades after it was first observed, chemists …
'It's so complicated:' Boeing Starliner teams diagnosing helium …
WEBMay 24, 2024 · Helium, as a non-inert gas, is not an immediate risk to a launch. But as it is in a part of the Starliner propulsion system, it could affect the pressurization for small …
The Long, Difficult Road of Boeing’s Starliner Capsule
WEBJun 5, 2024 · Helium, an inert gas, is used to push propellants to the thrusters. If too much is lost, the thrusters may not work properly. ... However, the analysis showed that an …
Boeing Starliner’s crew is now on the space station after …
WEB“Helium is used in spacecraft thruster systems to allow the thrusters to fire and is not combustible or toxic,” according to Boeing. As of Thursday morning, two of the three …
Top 25 Best Selling Products on Amazon in June 2024 | Helium 10
WEBWith a current star rating of 4.5, 30-day sales of nearly $80,000, and properly optimized SEO copy, this listing easily earns a 10/10 Helium 10 health score. 3. BEADSLAND’s …
Boeing’s Starliner finally soars, but mission control reports more ...
WEBJun 6, 2024 · Helium, which the spacecraft uses to push propellants from internal tanks to maneuvering thrusters, is an inert gas and non-toxic, and managers eventually …
Boeing Spacecraft Springs More Leaks as It Sputters to the
WEB6 days ago · Boeing has since said that "helium is used in spacecraft thruster systems to allow the thrusters to fire and is not combustible or toxic," and that the leak doesn't pose …
Windows10 issue with MSIX packages having cache …
WEBJun 6, 2024 · \Device\HarddiskVolume*\users\<username>\AppData\Local\Packages\<packagename>\<CLSID?>SystemAppData\Helium\Cache\<cacheID>UserClasses.dat …
Phys. Rev. Fluids 9, 064501 (2024) - Helium plumes at moderate …
WEB2 days ago · Abstract. We present an experimental investigation of the turbulent entrainment in non-Boussinesq steady plumes, focusing on three helium releases …
Top Draft prospects in NCAA super regionals 2024 - MLB.com
WEBJun 4, 2024 · Top prospects: Condon | Bazzana | Caglianone | Kurtz | Montgomery. Smith | Burns | Wetherholt | Griffin | Culpepper. There was a cycle in the Fayetteville Regional …
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