WebEnglish Translation of “primordiale” The official Collins Italian-English Dictionary online. Over 100,000 English translations of Italian words and phrases. A primordial element is a chemical element with at least one primordial nuclide. There are 251 stable primordial nuclides and 35 radioactive primordial nuclides, but only 80 primordial stable elements—hydrogen through lead, atomic numbers 1 to 82, with the exceptions of technetium (43) and promethium (61)—and … See more In geochemistry, geophysics and nuclear physics, primordial nuclides, also known as primordial isotopes, are nuclides found on Earth that have existed in their current form since before Earth was formed. Primordial nuclides … See more All of the known 251 stable nuclides, plus another 35 nuclides that have half-lives long enough to have survived from the formation of the Earth, occur as primordial nuclides. These 35 … See more As noted, these number about 251. For a list, see the article list of elements by stability of isotopes. For a complete list noting which of the … See more • Alpha nuclide • Table of nuclides sorted by half-life • Table of nuclides • Isotope geochemistry • Radionuclide See more Some unstable isotopes which occur naturally (such as C , H , and Pu ) are not primordial, as they must be constantly regenerated. This occurs by cosmic radiation (in … See more Although it is estimated that about 35 primordial nuclides are radioactive (list below), it becomes very difficult to determine the exact total number of radioactive … See more

What is primordial nucleosynthesis? Socratic

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primordiale translation in English French-English dictionary

WebJan 6, 1998 · The bottom line remains: primordial nucleosynthesis has joined the Hubble expansion and the microwave background radiation as one of the three pillars of Big Bang … Die Kerne chemischer Elemente schwerer als Wasserstoff entstehen laufend durch Kernreaktionen im Innern von Sternen. Noch bevor erste Sterne entstehen konnten, bildeten sich im Rahmen der primordialen Nukleosynthese bereits Deuterium, Helium-3, Helium-4 sowie Spuren von Lithium-7. Diese Nukleosynthese ist Forschungsgegenstand der Nuklearen Astrophysik und spielt auf dem Gebie… Webprimordial: [adjective] first created or developed : primeval 1. existing in or persisting from the beginning (as of a solar system or universe). earliest formed in the growth of an individual or organ : primitive. maxxis trailer tires reviews