SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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mixture
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compound
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element
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None of the above
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Detailed explanation-1: -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.
Detailed explanation-2: -Gaseous chemical element, symbol: He, atomic number: 2 and atomic weight 4, 0026 g/mol. Helium is one of the noble gases of group O in the periodic table. It’s the second lightest element. The main helium source in the world is a series of fields of natural gas in the United States.
Detailed explanation-3: -The second lightest element (only hydrogen is lighter), helium is a colourless, odourless, and tasteless gas that becomes liquid at −268.9 °C (−452 °F). The boiling and freezing points of helium are lower than those of any other known substance.
Detailed explanation-4: -Helium gas is used to inflate blimps, research balloons, and balloons for celebrations. It is used as an inert shield for arc welding, pressuring liquid-fueled rocket fuel tanks, and in supersonic wind tunnels.