• Thumbnail for Helium
    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...
    147 KB (16,229 words) - 07:28, 18 July 2024
  • Thumbnail for Helium-3
    Helium-3 (3He see also helion) is a light, stable isotope of helium with two protons and one neutron. (In contrast, the most common isotope, helium-4...
    64 KB (7,244 words) - 11:26, 25 July 2024
  • Thumbnail for Noble gas
    Noble gas (redirect from Helium family (p6))
    are the naturally occurring members of group 18 of the periodic table: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). Under...
    72 KB (7,317 words) - 03:08, 27 July 2024
  • Thumbnail for Liquid helium
    Liquid helium is a physical state of helium at very low temperatures at standard atmospheric pressures. Liquid helium may show superfluidity. At standard...
    12 KB (1,212 words) - 17:33, 6 June 2024
  • there are nine known isotopes of helium (2He) (standard atomic weight: 4.002602(2)), only helium-3 (3 He ) and helium-4 (4 He ) are stable. All radioisotopes...
    25 KB (2,644 words) - 00:37, 16 July 2024
  • containing helium. The effects experienced, and the severity of those effects, depend on the rate of descent, the depth and the percentage of helium. "Helium tremors"...
    8 KB (885 words) - 07:42, 22 July 2024
  • cooling of helium-4 (the more common isotope of helium), a 1-K pot liquefies a small amount of helium-3 in a small vessel called a helium-3 pot. Evaporative...
    1 KB (136 words) - 22:54, 23 May 2021
  • helium Helium-3 Helium-4 Helium (band), American rock band Helium (Pram album), 1994 Helium (H3llb3nt album), 1998 Helium (Homeshake album) "Helium" (Sia...
    2 KB (256 words) - 12:58, 23 July 2022
  • Thumbnail for Helium Vola
    Helium Vola is a German "electro-medieval" band founded in 2001 by Ernst Horn, who was also one of the founding members of Deine Lakaien and Qntal. Helium...
    12 KB (1,378 words) - 16:02, 11 September 2023
  • Thumbnail for Helium atom
    A helium atom is an atom of the chemical element helium. Helium is composed of two electrons bound by the electromagnetic force to a nucleus containing...
    35 KB (6,005 words) - 00:34, 16 July 2024