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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...

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 ...

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...

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...

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

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...

▶▶▶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 ...

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 ...