1) Argonon 2) Atomic number 2 3) Balloon fill 4) Balloon filler 5) Balloon gas 6) Blimp filler 7) Blimp supply 8) Chemical element 9) Chemical element 10) Contents of party store tanks 11) Element 12) Element discovered in 1895 13) Element number 2 14) Element with the symbol He 15) Inert gas 16) It can raise your voice
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https://www.crosswordclues.com/clue/helium
1) Element 2) Gas 3) He
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https://www.crosswordclues.com/clue/helium
He. Element 2, atomic weight 4.0026. A colorless, odorless, inert gas, first discovered in the emission spectrum of the sun in 1868.
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http://antoine.frostburg.edu/chem/senese/101/glossary/h.shtml
An inert, rare gas, one part of which occurs in 200,000 parts of our atmosphere
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http://jot101.com/2015/05/a-z-of-science-fiction-words/
• (n.) A gaseous element found in the atmospheres of the sun and earth and in some rare minerals. • (n.) An inert, monoatomic, gaseous element occurring in the atmosphere of the sun and stars, and in small quantities in the earth`s atmosphere, in several minerals and in certain mineral waters. Symbol, He; at. wt., 4. Helium was first dete...
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http://thinkexist.com/dictionary/meaning/helium/
(from the article `Keesom, Willem Hendrik`) ...joined the faculty of the Utrecht veterinary school. Six years later he returned to Leiden as professor of experimental physics. At the Onnes ...
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http://www.britannica.com/eb/a-z/h/33
chemical element, inert gas of Group 0 (noble gases) of the periodic table. The second lightest element (only hydrogen is lighter), helium is a ... [53 related articles]
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http://www.britannica.com/eb/a-z/h/33
Helium (symbol He) is a colorless, odorless, tasteless chemical element, one of the nearly inert noble gases of the periodic table of elements. Its boiling and melting points are the lowest among the elements; except in extreme conditions, it exists only as a gas. At extremely low temperatures, it is a superfluid, a nearly frictionless phase of mat...
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http://www.chemistry-dictionary.com/definition/helium.php
(He) A prototype Venus balloon in a JPL cleanroom. Image credit: NASA/JPL-Caltech A colorless, odorless, unreactive gaseous element which is the second most abundant and second lightest element in the universe (after hydrogen). Helium is one of the inert gases (also k...
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http://www.daviddarling.info/encyclopedia/H/helium.html
At room temperature, helium is a colourless and odourless gas. After hydrogen, it is the chemical element with the lowest density and has the lowest melting point of all elements. As with all other noble gases (neon, argon, krypton, xenon) helium is very inert. Therefore there are no known helium compounds in nature. Helium (helium I) changes state...
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http://www.encyclo.co.uk/local/20514
Discovered : by Sir William Ramsay in London, and independently by P.T. Cleve and N.A. Langlet in Uppsala, Sweden in 1895Origin : The name is derived from the Greek ‘helios`,sunDescription :A colourless, odourless gas that is totally unreactive. It is extracted from natural gas wells, some of which contain gas that is 7% helium. It is used in...
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http://www.encyclo.co.uk/local/20728
<element> A gas. Certain types of radiation therapy used charged, radioactive particles of helium. ... (16 Dec 1997) ...
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http://www.encyclo.co.uk/local/20973
(He) (he´le-әm) a chemical element, atomic number 2, atomic weight 4.003. It is a chemically inert element that is odorless, tasteless, and noncombustible.
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http://www.encyclo.co.uk/local/21001
Lighter than air gas, element He.
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http://www.encyclo.co.uk/visitor-contributions.php
He'li·um (hē'lĭ*ŭm)
noun [ New Latin , from Greek
'h`lios the sun.]
(Chemistry) An inert, monoatomic, gaseous element occurring in the atmosphere of the sun and stars, and in small quantities in the earth's atmosphere, in several minerals and in certain mineral wate...
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http://www.encyclo.co.uk/webster/H/28
He'li·um noun [ New Latin , from Greek ... the sun.]
(Chemistry) A gaseous element found in the atmospheres of the sun and earth and in some rare minerals.
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http://www.encyclo.co.uk/webster/H/28
a gas that's lighter-than-air.
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http://www.kidseclipse.com/pages/glossary.htm
(He) Type: Term Pronunciation: hē′lē-ŭm Definitions: 1. A gaseous element present in minute amounts in the atmosphere (0.000524% of dry volume); atomic no. 2, atomic wt. 4.002602; used as a diluent of medicinal gases; used as a diluent of oxygen principally in nonmedical applications, and in its liquid form as the coolan...
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http://www.medilexicon.com/medicaldictionary.php?t=39654
Helium is a gaseous element of the noble gas group with the symbol He.
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http://www.probertencyclopaedia.com/browse/GH.HTM
It is colourless, odourless, gaseous, non-metallic element.
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http://www.vidyagyaan.com/general-knowledge/basic-chemistry-element-terms-a
in inert and second lightest gas, used as a component of breathing gas mixtures for deep diving. The benefit of using helium is that it doesn’t cause problems of narcosis to the same extent as nitrogen.
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https://dipndive.com/blogs/stories/diving-lingo-101-glossary-of-terms-phras
A gas that is lighter than most other gases
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https://sciencetrek.org/sciencetrek/topics/gravity/glossary.cfm
An inert gaseous element. The atom is characterised by possessing two protons in its nucleus. Usually there two neutrons as well. This abundant form of helium is about four times as heavy as hydrogen. Helium accounts for just under one quarter of the atomic matter in the universe and was principally formed during the first few minutes after the big...
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https://www.encyclo.co.uk/local/20687
An inert colourless gas, one-sevcnth of the weight of air. It is preferable to hydrogen for use in airships because it is non-inflammable. Unfortunately it is very costly and is only found in workable quantities in North America, and it is twice as heavy as hydrogen.
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https://www.encyclo.co.uk/local/20784
Colourless, odourless, gaseous, non-metallic element, atomic number 2, relative atomic mass 4.0026. It is grouped with the noble gases (rare gases) in Group 0 of the periodic table. Helium is nonreactive because of its full outer shell of electrons and forms no compounds. It is the second most abundant element (after hydrogen) in the universe, ...
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https://www.encyclo.co.uk/local/21221
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