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 (6,924 words) - 08:26, 28 March 2024 |
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) - 17:25, 23 April 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... 22 KB (2,377 words) - 08:20, 5 April 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 |
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 (5,278 words) - 19:39, 19 January 2024 |
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 |
Alpha particle (redirect from Helium nucleus) protons and two neutrons bound together into a particle identical to a helium-4 nucleus. They are generally produced in the process of alpha decay but... 31 KB (3,867 words) - 03:24, 2 April 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... 93 KB (11,159 words) - 14:48, 25 April 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 |
A helium–neon laser or He-Ne laser is a type of gas laser whose high energetic medium gain medium consists of a mixture of ratio (between 5:1 and 20:1)... 13 KB (1,666 words) - 19:15, 26 January 2024 |
Big Bang nucleosynthesis (redirect from Primordial helium abundance) universe's helium (as isotope helium-4 (4He)), along with small fractions of the hydrogen isotope deuterium (2H or D), the helium isotope helium-3 (3He)... 33 KB (4,406 words) - 23:03, 11 April 2024 |
Nova (redirect from Helium nova) brightest nova of this millennium, reaching magnitude 3.3. A helium nova (undergoing a helium flash) is a proposed category of nova events that lacks hydrogen... 24 KB (2,657 words) - 00:23, 22 April 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 (1,613 words) - 02:38, 22 April 2024 |
Superfluid helium-4 (helium II or He-II) is the superfluid form of helium-4, an isotope of the element helium. A superfluid is a state of matter in which... 40 KB (4,819 words) - 18:11, 27 April 2024 |
the cosmos resulted from the nuclear fusion within stars of oxygen and helium through the alpha-capture process. Despite its abundant presence in the... 32 KB (3,820 words) - 14:16, 22 April 2024 |
Gas giant (section Helium rain on Saturn and Jupiter) A gas giant is a giant planet composed mainly of hydrogen and helium. Jupiter and Saturn are the gas giants of the Solar System. The term "gas giant" was... 18 KB (2,029 words) - 07:52, 2 April 2024 |
Helium storage and conservation is a process of maintaining supplies of helium and preventing wasteful loss. Helium is commercially produced as a byproduct... 17 KB (2,444 words) - 01:51, 14 September 2023 |
The Helium Network is a decentralized wireless Internet of things (IoT) network using the LoRaWAN system, tied to the cryptocurrency Helium Network Token... 5 KB (521 words) - 10:53, 25 December 2023 |
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 (703 words) - 03:39, 11 August 2023 |
The National Helium Reserve, also known as the Federal Helium Reserve, is a strategic reserve of the United States, which once held over 1 billion cubic... 9 KB (969 words) - 10:41, 2 March 2024 |
A helium planet is a planet with a helium-dominated atmosphere. This contrasts with ordinary gas giants such as Jupiter and Saturn, whose atmospheres... 5 KB (577 words) - 05:03, 3 December 2023 |
The helium dilution technique is the way of measuring the functional residual capacity of the lungs (the volume left in the lungs after normal expiration)... 4 KB (453 words) - 23:57, 28 January 2023 |
hydrogen into helium in a shell surrounding an inert helium core red-clump stars in the cool half of the horizontal branch, fusing helium into carbon in... 26 KB (3,361 words) - 11:58, 24 April 2024 |
A helium star is a class O or B star (blue), which has extraordinarily strong helium lines and weaker than normal hydrogen lines, indicating strong stellar... 4 KB (504 words) - 09:42, 13 September 2023 |