Search results
Results from the WOW.Com Content Network
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, non-toxic, inert, monatomic gas and the first in the noble gas group in the periodic table.
Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, Puritan clergyman John Harvard, it is the oldest institution of higher learning in the United States. Its influence, wealth, and rankings have made it one of the most prestigious ...
The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows (" periods ") and columns (" groups "). It is an icon of chemistry and is widely used in physics and other sciences. It is a depiction of the periodic law, which states that when the elements are arranged in order ...
Helium flash. Fusion of helium in the core of low mass stars. 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 low mass stars (between 0.8 solar masses ( M☉) and 2.0 M☉ [1]) during their red giant phase. The Sun is predicted to experience ...
The University of California, Berkeley ( UC Berkeley, Berkeley, Cal, or California) [11] [12] is a public land-grant research university in Berkeley, California. Founded in 1868 and named after Anglo-Irish philosopher George Berkeley, it is the state's first land-grant university and the founding campus of the University of California system.
University of Buriami. The University of Buraimi (UOB) [1] ( Arabic: جامعة البريمي) is a private university in the Al Buraimi Governorate in the Northern part of Oman. The university opened on 6 November 2010. The university is a product of a European-Omani consortium, and offers programs under Omani and European control.
Helium-2 (diproton) Helium-2, or 2 He, is an extremely unstable isotope of helium. Its nucleus, a diproton, consists of two protons with no neutrons.According to theoretical calculations, it would have been much more stable (although still undergoing β + decay to deuterium) if the strong interaction had been 2% greater.
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 at all, or at least under normal conditions. [1] Helium's first ionization energy of 24.57 eV is the highest of any element. [2] Helium has a complete shell of electrons, and in this form ...