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...
146 KB (16,095 words) - 03:31, 25 May 2024
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 has...
59 KB (6,915 words) - 20:37, 12 May 2024
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) - 08:32, 15 February 2024
Helium is the smallest and the lightest noble gas and one of the most unreactive elements, so it was commonly considered that helium compounds cannot exist...
92 KB (11,102 words) - 18:16, 29 April 2024
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 (5,997 words) - 04:13, 6 May 2024
Antiprotonic helium is a three-body atom composed of an antiproton and an electron orbiting around a helium nucleus. It is thus made partly of matter,...
10 KB (1,208 words) - 02:48, 18 May 2024
A helium flash is a very brief thermal runaway nuclear fusion of large quantities of helium into carbon through the triple-alpha process in the core of...
13 KB (1,615 words) - 10:45, 11 May 2024
Helium-4 (4 He ) is a stable isotope of the element helium. It is by far the more abundant of the two naturally occurring isotopes of helium, making up...
12 KB (1,391 words) - 16:20, 25 March 2024
Mt. Helium, formerly known as the Apex Theory, was an American rock band from Los Angeles, California, that was known for playing Mediterranean music mixed...
9 KB (737 words) - 11:17, 18 May 2024
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