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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.
18 de jul. de 2023 · Helium is a noble gas that does not react with other substances or ignite, but it can cause fire hazards if used in balloons or inhaled. Learn about helium's properties, uses, and risks in this informative article.
Helium is an inert and stable gas that is not reactive with other elements. Learn why some balloons may catch fire or explode and how to avoid them.
11 de oct. de 2017 · Helium is an inert gas that is not flammable, contrary to some media reports. Learn the truth behind the myth of helium balloons bursting into flames and the real causes of explosions involving hydrogen or acetylene.
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 -268.9 degrees Celsius. The boiling and freezing points of helium are lower than those of any other known substance.
13 de jul. de 2023 · Helium is an inert gas of the noble family of gases, meaning it is not flammable and does not react with other elements. While it is stored in pressurized tanks that can present safety hazards such as explosions, the gas itself is not flammable.
Perhaps the most familiar use of helium is as a safe, non-flammable gas to fill party and parade balloons. However, helium is a critical component in many fields, including scientific research, medical technology, high-tech manufacturing, space exploration, and national defense.
