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  1. Element Helium (He), Group 18, Atomic Number 2, s-block, Mass 4.003. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

    • Videos of Helium

      Discover more about the uses and properties of the element...

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    • Arsenic

      Arsenic - Helium - Element information, properties and uses...

    • Molybdenum

      Molybdenum - Helium - Element information, properties and...

    • Tellurium

      Tellurium - Helium - Element information, properties and...

    • Radium

      Radium - Helium - Element information, properties and uses |...

    • Oxygen

      Oxygen - Helium - Element information, properties and uses |...

  2. In essence, the chemical properties of helium can largely be summed up by its lack of reactivity. Its stable electron configuration, inertness, inability to form compounds, and non-reactive behavior make it unique among the elements.

  3. Helium is used as an inert-gas atmosphere for welding metals such as aluminum; in rocket propulsion (to pressurize fuel tanks, especially those for liquid hydrogen, because only helium is still a gas at liquid-hydrogen temperature); in meteorology (as a lifting gas for instrument-carrying balloons); in cryogenics (as a coolant because liquid ...

  4. Several uses of helium along with the properties that make it suitable for the use are described below. Magnetic Resonance Imaging. The number one use of helium is in the magnetic resonance imaging machines used in medical facilities to assess injuries and diagnose illness.

  5. Significance and Uses. Helium is widely used as coolant in magnetic resonance imaging (MRI) for medical scanning. It is used in supersonic wind tunnels. Helium is used in arc welding processes. Helium is used as an ideal gas for filling of balloons, and airships, as it is lighter than air and is non-flammable.

  6. en.wikipedia.org › wiki › HeliumHelium - 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, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table.

  7. 31 gru 2009 · Although helium is part of the atmosphere, it is not economical to extract it from liquid air. Uses. A quarter of the helium produced is used as a coolant for super-conducting magnets in MRI instruments. Another major use is as an inert atmosphere for welding air-sensitive metals.

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