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  1. Helium is a colorless, odorless, tasteless chemical element, the least reactive of the nearly inert...nearly frictionless phase of matter with unusual properties. After hydrogen, helium is the second lightest element and the second most abundant...

    6 Answers · Science & Mathematics · 01/02/2007

  2. Helium is not air (although in air in low quantities). Whenever you...if you breath air and lose, say 100 brain cells in a period of time, and breath helium and lose 400 brain cells in the same period, which is worse...

    10 Answers · Health · 24/06/2007

  3. Helium exists in liquid form only at very low ... point and critical point depend on the isotope of the helium ; see the table below for values. The density...separation into a lighter normal fluid that is mostly helium -3, and a denser superfluid that is mostly helium ...

    7 Answers · Science & Mathematics · 05/09/2008

  4. The speed of sound in helium is nearly three times the speed of sound in air. Because the... by inhaling a dense gas such as sulfur hexafluoride.) Inhaling helium can be dangerous if done to excess, since helium is a simple asphyxiant and...

    2 Answers · Science & Mathematics · 02/12/2010

  5. Helium was first solidified in 1926! Yes, it exists...lattice like CsCl or Cu (depending on pressure). At 1 atm, helium will not turn into solid even at 0K due to quantum-mechanical effects...

    6 Answers · Science & Mathematics · 27/11/2007

  6. For other uses, see Helium (disambiguation). 2 hydrogen ← helium → lithium - ↑ He... Main article: Isotopes of helium iso NA half-life DM DE (MeV...

    5 Answers · Science & Mathematics · 16/10/2007

  7. Helium (He) is a colorless, odorless, tasteless, non-toxic, inert monatomic chemical element that heads the noble gas group... the same eclipse and was the first to propose this was a new element which he named helium . In 1903, large reserves of helium were found in the natural gas fields of the ...

    1 Answers · Science & Mathematics · 13/02/2011

  8. Helium is a colorless, odorless, tasteless chemical element. It is the most unreactive...nearly frictionless phase of matter with unusual properties. After hydrogen, helium is the second lightest element and the second most abundant...

    10 Answers · Science & Mathematics · 06/11/2006

  9. ▶▶▶Is helium really that dangerous?◀◀◀ It can be. Breathing in pure helium ...body exhausted the supply of oxygen stored in the blood. But helium speeds up this process: When the gas fills your ...

    21 Answers · Science & Mathematics · 14/06/2009

  10. Question 1: Helium is the 2nd most abundant element in the universe...abundant source. Now, on earth, the most abundant place of Helium is a natural geyser. After an oil ...

    8 Answers · Science & Mathematics · 05/08/2009

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